64389840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{268291}}^1$

素因数の和:268307

約数の個数: 40

約数和(自身を含む): 199609248

約数和(自身を除く): 135219408

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 268291, 536582, 804873, 1073164, 1341455, 1609746, 2146328, 2682910, 3219492, 4024365, 4292656, 5365820, 6438984, 8048730, 10731640, 12877968, 16097460, 21463280, 32194920, 64389840]

約数ペア:

[(1, 64389840), (2, 32194920), (3, 21463280), (4, 16097460), (5, 12877968), (6, 10731640), (8, 8048730), (10, 6438984), (12, 5365820), (15, 4292656), (16, 4024365), (20, 3219492), (24, 2682910), (30, 2146328), (40, 1609746), (48, 1341455), (60, 1073164), (80, 804873), (120, 536582), (240, 268291)]