180866920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{347821}}^1$

素因数の和:347845

約数の個数: 32

約数和(自身を含む): 438255720

約数和(自身を除く): 257388800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 347821, 695642, 1391284, 1739105, 2782568, 3478210, 4521673, 6956420, 9043346, 13912840, 18086692, 22608365, 36173384, 45216730, 90433460, 180866920]

約数ペア:

[(1, 180866920), (2, 90433460), (4, 45216730), (5, 36173384), (8, 22608365), (10, 18086692), (13, 13912840), (20, 9043346), (26, 6956420), (40, 4521673), (52, 3478210), (65, 2782568), (104, 1739105), (130, 1391284), (260, 695642), (520, 347821)]