31987240

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{21613}}^1$

素因数の和:21661

約数の個数: 32

約数和(自身を含む): 73919880

約数和(自身を除く): 41932640

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 21613, 43226, 86452, 108065, 172904, 216130, 432260, 799681, 864520, 1599362, 3198724, 3998405, 6397448, 7996810, 15993620, 31987240]

約数ペア:

[(1, 31987240), (2, 15993620), (4, 7996810), (5, 6397448), (8, 3998405), (10, 3198724), (20, 1599362), (37, 864520), (40, 799681), (74, 432260), (148, 216130), (185, 172904), (296, 108065), (370, 86452), (740, 43226), (1480, 21613)]