220143340

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{521}}^1\times {\mathrm{571}}^1$

素因数の和:1138

約数の個数: 48

約数和(自身を含む): 476540064

約数和(自身を除く): 256396724

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 521, 571, 740, 1042, 1142, 2084, 2284, 2605, 2855, 5210, 5710, 10420, 11420, 19277, 21127, 38554, 42254, 77108, 84508, 96385, 105635, 192770, 211270, 297491, 385540, 422540, 594982, 1189964, 1487455, 2974910, 5949820, 11007167, 22014334, 44028668, 55035835, 110071670, 220143340]

約数ペア:

[(1, 220143340), (2, 110071670), (4, 55035835), (5, 44028668), (10, 22014334), (20, 11007167), (37, 5949820), (74, 2974910), (148, 1487455), (185, 1189964), (370, 594982), (521, 422540), (571, 385540), (740, 297491), (1042, 211270), (1142, 192770), (2084, 105635), (2284, 96385), (2605, 84508), (2855, 77108), (5210, 42254), (5710, 38554), (10420, 21127), (11420, 19277)]