20990135880

素因数分解:

$2^3\times 3^5\times 5^1\times 7^2\times {\mathrm{44071}}^1$

素因数の和:44111

約数の個数: 288

約数和(自身を含む): 82296527040

約数和(自身を除く): 61306391160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 49, 54, 56, 60, 63, 70, 72, 81, 84, 90, 98, 105, 108, 120, 126, 135, 140, 147, 162, 168, 180, 189, 196, 210, 216, 243, 245, 252, 270, 280, 294, 315, 324, 360, 378, 392, 405, 420, 441, 486, 490, 504, 540, 567, 588, 630, 648, 735, 756, 810, 840, 882, 945, 972, 980, 1080, 1134, 1176, 1215, 1260, 1323, 1470, 1512, 1620, 1701, 1764, 1890, 1944, 1960, 2205, 2268, 2430, 2520, 2646, 2835, 2940, 3240, 3402, 3528, 3780, 3969, 4410, 4536, 4860, 5292, 5670, 5880, 6615, 6804, 7560, 7938, 8505, 8820, 9720, 10584, 11340, 11907, 13230, 13608, 15876, 17010, 17640, 19845, 22680, 23814, 26460, 31752, 34020, 39690, 44071, 47628, 52920, 59535, 68040, 79380, 88142, 95256, 119070, 132213, 158760, 176284, 220355, 238140, 264426, 308497, 352568, 396639, 440710, 476280, 528852, 616994, 661065, 793278, 881420, 925491, 1057704, 1189917, 1233988, 1322130, 1542485, 1586556, 1762840, 1850982, 1983195, 2159479, 2379834, 2467976, 2644260, 2776473, 3084970, 3173112, 3569751, 3701964, 3966390, 4318958, 4627455, 4759668, 5288520, 5552946, 5949585, 6169940, 6478437, 7139502, 7403928, 7932780, 8329419, 8637916, 9254910, 9519336, 10709253, 10797395, 11105892, 11899170, 12339880, 12956874, 13882365, 14279004, 15865560, 16658838, 17275832, 17848755, 18509820, 19435311, 21418506, 21594790, 22211784, 23798340, 24988257, 25913748, 27764730, 28558008, 32392185, 33317676, 35697510, 37019640, 38870622, 41647095, 42837012, 43189580, 47596680, 49976514, 51827496, 53546265, 55529460, 58305933, 64784370, 66635352, 71395020, 74964771, 77741244, 83294190, 85674024, 86379160, 97176555, 99953028, 107092530, 111058920, 116611866, 124941285, 129568740, 142790040, 149929542, 155482488, 166588380, 174917799, 194353110, 199906056, 214185060, 233223732, 249882570, 259137480, 291529665, 299859084, 333176760, 349835598, 374823855, 388706220, 428370120, 466447464, 499765140, 524753397, 583059330, 599718168, 699671196, 749647710, 777412440, 874588995, 999530280, 1049506794, 1166118660, 1399342392, 1499295420, 1749177990, 2099013588, 2332237320, 2623766985, 2998590840, 3498355980, 4198027176, 5247533970, 6996711960, 10495067940, 20990135880]

約数ペア:

[(1, 20990135880), (2, 10495067940), (3, 6996711960), (4, 5247533970), (5, 4198027176), (6, 3498355980), (7, 2998590840), (8, 2623766985), (9, 2332237320), (10, 2099013588), (12, 1749177990), (14, 1499295420), (15, 1399342392), (18, 1166118660), (20, 1049506794), (21, 999530280), (24, 874588995), (27, 777412440), (28, 749647710), (30, 699671196), (35, 599718168), (36, 583059330), (40, 524753397), (42, 499765140), (45, 466447464), (49, 428370120), (54, 388706220), (56, 374823855), (60, 349835598), (63, 333176760), (70, 299859084), (72, 291529665), (81, 259137480), (84, 249882570), (90, 233223732), (98, 214185060), (105, 199906056), (108, 194353110), (120, 174917799), (126, 166588380), (135, 155482488), (140, 149929542), (147, 142790040), (162, 129568740), (168, 124941285), (180, 116611866), (189, 111058920), (196, 107092530), (210, 99953028), (216, 97176555), (243, 86379160), (245, 85674024), (252, 83294190), (270, 77741244), (280, 74964771), (294, 71395020), (315, 66635352), (324, 64784370), (360, 58305933), (378, 55529460), (392, 53546265), (405, 51827496), (420, 49976514), (441, 47596680), (486, 43189580), (490, 42837012), (504, 41647095), (540, 38870622), (567, 37019640), (588, 35697510), (630, 33317676), (648, 32392185), (735, 28558008), (756, 27764730), (810, 25913748), (840, 24988257), (882, 23798340), (945, 22211784), (972, 21594790), (980, 21418506), (1080, 19435311), (1134, 18509820), (1176, 17848755), (1215, 17275832), (1260, 16658838), (1323, 15865560), (1470, 14279004), (1512, 13882365), (1620, 12956874), (1701, 12339880), (1764, 11899170), (1890, 11105892), (1944, 10797395), (1960, 10709253), (2205, 9519336), (2268, 9254910), (2430, 8637916), (2520, 8329419), (2646, 7932780), (2835, 7403928), (2940, 7139502), (3240, 6478437), (3402, 6169940), (3528, 5949585), (3780, 5552946), (3969, 5288520), (4410, 4759668), (4536, 4627455), (4860, 4318958), (5292, 3966390), (5670, 3701964), (5880, 3569751), (6615, 3173112), (6804, 3084970), (7560, 2776473), (7938, 2644260), (8505, 2467976), (8820, 2379834), (9720, 2159479), (10584, 1983195), (11340, 1850982), (11907, 1762840), (13230, 1586556), (13608, 1542485), (15876, 1322130), (17010, 1233988), (17640, 1189917), (19845, 1057704), (22680, 925491), (23814, 881420), (26460, 793278), (31752, 661065), (34020, 616994), (39690, 528852), (44071, 476280), (47628, 440710), (52920, 396639), (59535, 352568), (68040, 308497), (79380, 264426), (88142, 238140), (95256, 220355), (119070, 176284), (132213, 158760)]