16987320

素因数分解:

$2^3\times 3^4\times 5^1\times 7^2\times {\mathrm{107}}^1$

素因数の和:144

約数の個数: 240

約数和(自身を含む): 67038840

約数和(自身を除く): 50051520

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, 107, 108, 120, 126, 135, 140, 147, 162, 168, 180, 189, 196, 210, 214, 216, 245, 252, 270, 280, 294, 315, 321, 324, 360, 378, 392, 405, 420, 428, 441, 490, 504, 535, 540, 567, 588, 630, 642, 648, 735, 749, 756, 810, 840, 856, 882, 945, 963, 980, 1070, 1080, 1134, 1176, 1260, 1284, 1323, 1470, 1498, 1512, 1605, 1620, 1764, 1890, 1926, 1960, 2140, 2205, 2247, 2268, 2520, 2568, 2646, 2835, 2889, 2940, 2996, 3210, 3240, 3528, 3745, 3780, 3852, 3969, 4280, 4410, 4494, 4536, 4815, 5243, 5292, 5670, 5778, 5880, 5992, 6420, 6615, 6741, 7490, 7560, 7704, 7938, 8667, 8820, 8988, 9630, 10486, 10584, 11235, 11340, 11556, 12840, 13230, 13482, 14445, 14980, 15729, 15876, 17334, 17640, 17976, 19260, 19845, 20223, 20972, 22470, 22680, 23112, 26215, 26460, 26964, 28890, 29960, 31458, 31752, 33705, 34668, 38520, 39690, 40446, 41944, 43335, 44940, 47187, 52430, 52920, 53928, 57780, 60669, 62916, 67410, 69336, 78645, 79380, 80892, 86670, 89880, 94374, 101115, 104860, 115560, 121338, 125832, 134820, 141561, 157290, 158760, 161784, 173340, 188748, 202230, 209720, 235935, 242676, 269640, 283122, 303345, 314580, 346680, 377496, 404460, 424683, 471870, 485352, 566244, 606690, 629160, 707805, 808920, 849366, 943740, 1132488, 1213380, 1415610, 1698732, 1887480, 2123415, 2426760, 2831220, 3397464, 4246830, 5662440, 8493660, 16987320]

約数ペア:

[(1, 16987320), (2, 8493660), (3, 5662440), (4, 4246830), (5, 3397464), (6, 2831220), (7, 2426760), (8, 2123415), (9, 1887480), (10, 1698732), (12, 1415610), (14, 1213380), (15, 1132488), (18, 943740), (20, 849366), (21, 808920), (24, 707805), (27, 629160), (28, 606690), (30, 566244), (35, 485352), (36, 471870), (40, 424683), (42, 404460), (45, 377496), (49, 346680), (54, 314580), (56, 303345), (60, 283122), (63, 269640), (70, 242676), (72, 235935), (81, 209720), (84, 202230), (90, 188748), (98, 173340), (105, 161784), (107, 158760), (108, 157290), (120, 141561), (126, 134820), (135, 125832), (140, 121338), (147, 115560), (162, 104860), (168, 101115), (180, 94374), (189, 89880), (196, 86670), (210, 80892), (214, 79380), (216, 78645), (245, 69336), (252, 67410), (270, 62916), (280, 60669), (294, 57780), (315, 53928), (321, 52920), (324, 52430), (360, 47187), (378, 44940), (392, 43335), (405, 41944), (420, 40446), (428, 39690), (441, 38520), (490, 34668), (504, 33705), (535, 31752), (540, 31458), (567, 29960), (588, 28890), (630, 26964), (642, 26460), (648, 26215), (735, 23112), (749, 22680), (756, 22470), (810, 20972), (840, 20223), (856, 19845), (882, 19260), (945, 17976), (963, 17640), (980, 17334), (1070, 15876), (1080, 15729), (1134, 14980), (1176, 14445), (1260, 13482), (1284, 13230), (1323, 12840), (1470, 11556), (1498, 11340), (1512, 11235), (1605, 10584), (1620, 10486), (1764, 9630), (1890, 8988), (1926, 8820), (1960, 8667), (2140, 7938), (2205, 7704), (2247, 7560), (2268, 7490), (2520, 6741), (2568, 6615), (2646, 6420), (2835, 5992), (2889, 5880), (2940, 5778), (2996, 5670), (3210, 5292), (3240, 5243), (3528, 4815), (3745, 4536), (3780, 4494), (3852, 4410), (3969, 4280)]