123979960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{238423}}^1$

素因数の和:238447

約数の個数: 32

約数和(自身を含む): 300414240

約数和(自身を除く): 176434280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 238423, 476846, 953692, 1192115, 1907384, 2384230, 3099499, 4768460, 6198998, 9536920, 12397996, 15497495, 24795992, 30994990, 61989980, 123979960]

約数ペア:

[(1, 123979960), (2, 61989980), (4, 30994990), (5, 24795992), (8, 15497495), (10, 12397996), (13, 9536920), (20, 6198998), (26, 4768460), (40, 3099499), (52, 2384230), (65, 1907384), (104, 1192115), (130, 953692), (260, 476846), (520, 238423)]