208389840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{868291}}^1$

素因数の和:868307

約数の個数: 40

約数和(自身を含む): 646009248

約数和(自身を除く): 437619408

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 868291, 1736582, 2604873, 3473164, 4341455, 5209746, 6946328, 8682910, 10419492, 13024365, 13892656, 17365820, 20838984, 26048730, 34731640, 41677968, 52097460, 69463280, 104194920, 208389840]

約数ペア:

[(1, 208389840), (2, 104194920), (3, 69463280), (4, 52097460), (5, 41677968), (6, 34731640), (8, 26048730), (10, 20838984), (12, 17365820), (15, 13892656), (16, 13024365), (20, 10419492), (24, 8682910), (30, 6946328), (40, 5209746), (48, 4341455), (60, 3473164), (80, 2604873), (120, 1736582), (240, 868291)]