89251240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{171637}}^1$

素因数の和:171661

約数の個数: 32

約数和(自身を含む): 216263880

約数和(自身を除く): 127012640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 171637, 343274, 686548, 858185, 1373096, 1716370, 2231281, 3432740, 4462562, 6865480, 8925124, 11156405, 17850248, 22312810, 44625620, 89251240]

約数ペア:

[(1, 89251240), (2, 44625620), (4, 22312810), (5, 17850248), (8, 11156405), (10, 8925124), (13, 6865480), (20, 4462562), (26, 3432740), (40, 2231281), (52, 1716370), (65, 1373096), (104, 858185), (130, 686548), (260, 343274), (520, 171637)]