247959920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{238423}}^1$

素因数の和:238449

約数の個数: 40

約数和(自身を含む): 620856096

約数和(自身を除く): 372896176

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 238423, 476846, 953692, 1192115, 1907384, 2384230, 3099499, 3814768, 4768460, 6198998, 9536920, 12397996, 15497495, 19073840, 24795992, 30994990, 49591984, 61989980, 123979960, 247959920]

約数ペア:

[(1, 247959920), (2, 123979960), (4, 61989980), (5, 49591984), (8, 30994990), (10, 24795992), (13, 19073840), (16, 15497495), (20, 12397996), (26, 9536920), (40, 6198998), (52, 4768460), (65, 3814768), (80, 3099499), (104, 2384230), (130, 1907384), (208, 1192115), (260, 953692), (520, 476846), (1040, 238423)]