20147393920

素因数分解:

$2^7\times 5^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{6121}}^1$

素因数の和:6316

約数の個数: 128

約数和(自身を含む): 49830631200

約数和(自身を除く): 29683237280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 64, 74, 80, 128, 139, 148, 160, 185, 278, 296, 320, 370, 556, 592, 640, 695, 740, 1112, 1184, 1390, 1480, 2224, 2368, 2780, 2960, 4448, 4736, 5143, 5560, 5920, 6121, 8896, 10286, 11120, 11840, 12242, 17792, 20572, 22240, 23680, 24484, 25715, 30605, 41144, 44480, 48968, 51430, 61210, 82288, 88960, 97936, 102860, 122420, 164576, 195872, 205720, 226477, 244840, 329152, 391744, 411440, 452954, 489680, 658304, 783488, 822880, 850819, 905908, 979360, 1132385, 1645760, 1701638, 1811816, 1958720, 2264770, 3291520, 3403276, 3623632, 3917440, 4254095, 4529540, 6806552, 7247264, 8508190, 9059080, 13613104, 14494528, 17016380, 18118160, 27226208, 28989056, 31480303, 34032760, 36236320, 54452416, 62960606, 68065520, 72472640, 108904832, 125921212, 136131040, 144945280, 157401515, 251842424, 272262080, 314803030, 503684848, 544524160, 629606060, 1007369696, 1259212120, 2014739392, 2518424240, 4029478784, 5036848480, 10073696960, 20147393920]

約数ペア:

[(1, 20147393920), (2, 10073696960), (4, 5036848480), (5, 4029478784), (8, 2518424240), (10, 2014739392), (16, 1259212120), (20, 1007369696), (32, 629606060), (37, 544524160), (40, 503684848), (64, 314803030), (74, 272262080), (80, 251842424), (128, 157401515), (139, 144945280), (148, 136131040), (160, 125921212), (185, 108904832), (278, 72472640), (296, 68065520), (320, 62960606), (370, 54452416), (556, 36236320), (592, 34032760), (640, 31480303), (695, 28989056), (740, 27226208), (1112, 18118160), (1184, 17016380), (1390, 14494528), (1480, 13613104), (2224, 9059080), (2368, 8508190), (2780, 7247264), (2960, 6806552), (4448, 4529540), (4736, 4254095), (5143, 3917440), (5560, 3623632), (5920, 3403276), (6121, 3291520), (8896, 2264770), (10286, 1958720), (11120, 1811816), (11840, 1701638), (12242, 1645760), (17792, 1132385), (20572, 979360), (22240, 905908), (23680, 850819), (24484, 822880), (25715, 783488), (30605, 658304), (41144, 489680), (44480, 452954), (48968, 411440), (51430, 391744), (61210, 329152), (82288, 244840), (88960, 226477), (97936, 205720), (102860, 195872), (122420, 164576)]