72745640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{165331}}^1$

素因数の和:165353

約数の個数: 32

約数和(自身を含む): 178558560

約数和(自身を除く): 105812920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 165331, 330662, 661324, 826655, 1322648, 1653310, 1818641, 3306620, 3637282, 6613240, 7274564, 9093205, 14549128, 18186410, 36372820, 72745640]

約数ペア:

[(1, 72745640), (2, 36372820), (4, 18186410), (5, 14549128), (8, 9093205), (10, 7274564), (11, 6613240), (20, 3637282), (22, 3306620), (40, 1818641), (44, 1653310), (55, 1322648), (88, 826655), (110, 661324), (220, 330662), (440, 165331)]