89992120

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{52321}}^1$

素因数の和:52375

約数の個数: 32

約数和(自身を含む): 207195120

約数和(自身を除く): 117203000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 52321, 104642, 209284, 261605, 418568, 523210, 1046420, 2092840, 2249803, 4499606, 8999212, 11249015, 17998424, 22498030, 44996060, 89992120]

約数ペア:

[(1, 89992120), (2, 44996060), (4, 22498030), (5, 17998424), (8, 11249015), (10, 8999212), (20, 4499606), (40, 2249803), (43, 2092840), (86, 1046420), (172, 523210), (215, 418568), (344, 261605), (430, 209284), (860, 104642), (1720, 52321)]