681644880

素因数分解:

$2^4\times 3^2\times 5^1\times 7^2\times {\mathrm{139}}^2$

素因数の和:311

約数の個数: 270

約数和(自身を含む): 2682231786

約数和(自身を除く): 2000586906

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 70, 72, 80, 84, 90, 98, 105, 112, 120, 126, 139, 140, 144, 147, 168, 180, 196, 210, 240, 245, 252, 278, 280, 294, 315, 336, 360, 392, 417, 420, 441, 490, 504, 556, 560, 588, 630, 695, 720, 735, 784, 834, 840, 882, 973, 980, 1008, 1112, 1176, 1251, 1260, 1390, 1470, 1668, 1680, 1764, 1946, 1960, 2085, 2205, 2224, 2352, 2502, 2520, 2780, 2919, 2940, 3336, 3528, 3892, 3920, 4170, 4410, 4865, 5004, 5040, 5560, 5838, 5880, 6255, 6672, 6811, 7056, 7784, 8340, 8757, 8820, 9730, 10008, 11120, 11676, 11760, 12510, 13622, 14595, 15568, 16680, 17514, 17640, 19321, 19460, 20016, 20433, 23352, 25020, 27244, 29190, 33360, 34055, 35028, 35280, 38642, 38920, 40866, 43785, 46704, 50040, 54488, 57963, 58380, 61299, 68110, 70056, 77284, 77840, 81732, 87570, 96605, 100080, 102165, 108976, 115926, 116760, 122598, 135247, 136220, 140112, 154568, 163464, 173889, 175140, 193210, 204330, 231852, 233520, 245196, 270494, 272440, 289815, 306495, 309136, 326928, 347778, 350280, 386420, 405741, 408660, 463704, 490392, 540988, 544880, 579630, 612990, 676235, 695556, 700560, 772840, 811482, 817320, 869445, 927408, 946729, 980784, 1081976, 1159260, 1217223, 1225980, 1352470, 1391112, 1545680, 1622964, 1634640, 1738890, 1893458, 2028705, 2163952, 2318520, 2434446, 2451960, 2704940, 2782224, 2840187, 3245928, 3477780, 3786916, 4057410, 4637040, 4733645, 4868892, 4903920, 5409880, 5680374, 6086115, 6491856, 6955560, 7573832, 8114820, 8520561, 9467290, 9737784, 10819760, 11360748, 12172230, 13911120, 14200935, 15147664, 16229640, 17041122, 18934580, 19475568, 22721496, 24344460, 28401870, 32459280, 34082244, 37869160, 42602805, 45442992, 48688920, 56803740, 68164488, 75738320, 85205610, 97377840, 113607480, 136328976, 170411220, 227214960, 340822440, 681644880]

約数ペア:

[(1, 681644880), (2, 340822440), (3, 227214960), (4, 170411220), (5, 136328976), (6, 113607480), (7, 97377840), (8, 85205610), (9, 75738320), (10, 68164488), (12, 56803740), (14, 48688920), (15, 45442992), (16, 42602805), (18, 37869160), (20, 34082244), (21, 32459280), (24, 28401870), (28, 24344460), (30, 22721496), (35, 19475568), (36, 18934580), (40, 17041122), (42, 16229640), (45, 15147664), (48, 14200935), (49, 13911120), (56, 12172230), (60, 11360748), (63, 10819760), (70, 9737784), (72, 9467290), (80, 8520561), (84, 8114820), (90, 7573832), (98, 6955560), (105, 6491856), (112, 6086115), (120, 5680374), (126, 5409880), (139, 4903920), (140, 4868892), (144, 4733645), (147, 4637040), (168, 4057410), (180, 3786916), (196, 3477780), (210, 3245928), (240, 2840187), (245, 2782224), (252, 2704940), (278, 2451960), (280, 2434446), (294, 2318520), (315, 2163952), (336, 2028705), (360, 1893458), (392, 1738890), (417, 1634640), (420, 1622964), (441, 1545680), (490, 1391112), (504, 1352470), (556, 1225980), (560, 1217223), (588, 1159260), (630, 1081976), (695, 980784), (720, 946729), (735, 927408), (784, 869445), (834, 817320), (840, 811482), (882, 772840), (973, 700560), (980, 695556), (1008, 676235), (1112, 612990), (1176, 579630), (1251, 544880), (1260, 540988), (1390, 490392), (1470, 463704), (1668, 408660), (1680, 405741), (1764, 386420), (1946, 350280), (1960, 347778), (2085, 326928), (2205, 309136), (2224, 306495), (2352, 289815), (2502, 272440), (2520, 270494), (2780, 245196), (2919, 233520), (2940, 231852), (3336, 204330), (3528, 193210), (3892, 175140), (3920, 173889), (4170, 163464), (4410, 154568), (4865, 140112), (5004, 136220), (5040, 135247), (5560, 122598), (5838, 116760), (5880, 115926), (6255, 108976), (6672, 102165), (6811, 100080), (7056, 96605), (7784, 87570), (8340, 81732), (8757, 77840), (8820, 77284), (9730, 70056), (10008, 68110), (11120, 61299), (11676, 58380), (11760, 57963), (12510, 54488), (13622, 50040), (14595, 46704), (15568, 43785), (16680, 40866), (17514, 38920), (17640, 38642), (19321, 35280), (19460, 35028), (20016, 34055), (20433, 33360), (23352, 29190), (25020, 27244)]