1797888980

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1\times {\mathrm{6427}}^1$

素因数の和:6704

約数の個数: 48

約数和(自身を含む): 3848777856

約数和(自身を除く): 2050888876

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 197, 284, 355, 394, 710, 788, 985, 1420, 1970, 3940, 6427, 12854, 13987, 25708, 27974, 32135, 55948, 64270, 69935, 128540, 139870, 279740, 456317, 912634, 1266119, 1825268, 2281585, 2532238, 4563170, 5064476, 6330595, 9126340, 12661190, 25322380, 89894449, 179788898, 359577796, 449472245, 898944490, 1797888980]

約数ペア:

[(1, 1797888980), (2, 898944490), (4, 449472245), (5, 359577796), (10, 179788898), (20, 89894449), (71, 25322380), (142, 12661190), (197, 9126340), (284, 6330595), (355, 5064476), (394, 4563170), (710, 2532238), (788, 2281585), (985, 1825268), (1420, 1266119), (1970, 912634), (3940, 456317), (6427, 279740), (12854, 139870), (13987, 128540), (25708, 69935), (27974, 64270), (32135, 55948)]