253901960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1\times {\mathrm{149}}^1$

素因数の和:315

約数の個数: 128

約数和(自身を含む): 646380000

約数和(自身を除く): 392478040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 29, 40, 52, 58, 65, 104, 113, 116, 130, 145, 149, 226, 232, 260, 290, 298, 377, 452, 520, 565, 580, 596, 745, 754, 904, 1130, 1160, 1192, 1469, 1490, 1508, 1885, 1937, 2260, 2938, 2980, 3016, 3277, 3770, 3874, 4321, 4520, 5876, 5960, 6554, 7345, 7540, 7748, 8642, 9685, 11752, 13108, 14690, 15080, 15496, 16385, 16837, 17284, 19370, 21605, 26216, 29380, 32770, 33674, 34568, 38740, 42601, 43210, 56173, 58760, 65540, 67348, 77480, 84185, 85202, 86420, 112346, 131080, 134696, 168370, 170404, 172840, 213005, 218881, 224692, 280865, 336740, 340808, 426010, 437762, 449384, 488273, 561730, 673480, 852020, 875524, 976546, 1094405, 1123460, 1704040, 1751048, 1953092, 2188810, 2246920, 2441365, 3906184, 4377620, 4882730, 6347549, 8755240, 9765460, 12695098, 19530920, 25390196, 31737745, 50780392, 63475490, 126950980, 253901960]

約数ペア:

[(1, 253901960), (2, 126950980), (4, 63475490), (5, 50780392), (8, 31737745), (10, 25390196), (13, 19530920), (20, 12695098), (26, 9765460), (29, 8755240), (40, 6347549), (52, 4882730), (58, 4377620), (65, 3906184), (104, 2441365), (113, 2246920), (116, 2188810), (130, 1953092), (145, 1751048), (149, 1704040), (226, 1123460), (232, 1094405), (260, 976546), (290, 875524), (298, 852020), (377, 673480), (452, 561730), (520, 488273), (565, 449384), (580, 437762), (596, 426010), (745, 340808), (754, 336740), (904, 280865), (1130, 224692), (1160, 218881), (1192, 213005), (1469, 172840), (1490, 170404), (1508, 168370), (1885, 134696), (1937, 131080), (2260, 112346), (2938, 86420), (2980, 85202), (3016, 84185), (3277, 77480), (3770, 67348), (3874, 65540), (4321, 58760), (4520, 56173), (5876, 43210), (5960, 42601), (6554, 38740), (7345, 34568), (7540, 33674), (7748, 32770), (8642, 29380), (9685, 26216), (11752, 21605), (13108, 19370), (14690, 17284), (15080, 16837), (15496, 16385)]