557236420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2143217}}^1$

素因数の和:2143239

約数の個数: 24

約数和(自身を含む): 1260212184

約数和(自身を除く): 702975764

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 2143217, 4286434, 8572868, 10716085, 21432170, 27861821, 42864340, 55723642, 111447284, 139309105, 278618210, 557236420]

約数ペア:

[(1, 557236420), (2, 278618210), (4, 139309105), (5, 111447284), (10, 55723642), (13, 42864340), (20, 27861821), (26, 21432170), (52, 10716085), (65, 8572868), (130, 4286434), (260, 2143217)]