129435664

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{260959}}^1$

素因数の和:260998

約数の個数: 20

約数和(自身を含む): 258872320

約数和(自身を除く): 129436656

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 260959, 521918, 1043836, 2087672, 4175344, 8089729, 16179458, 32358916, 64717832, 129435664]

約数ペア:

[(1, 129435664), (2, 64717832), (4, 32358916), (8, 16179458), (16, 8089729), (31, 4175344), (62, 2087672), (124, 1043836), (248, 521918), (496, 260959)]