3997240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7687}}^1$

素因数の和:7711

約数の個数: 32

約数和(自身を含む): 9686880

約数和(自身を除く): 5689640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 7687, 15374, 30748, 38435, 61496, 76870, 99931, 153740, 199862, 307480, 399724, 499655, 799448, 999310, 1998620, 3997240]

約数ペア:

[(1, 3997240), (2, 1998620), (4, 999310), (5, 799448), (8, 499655), (10, 399724), (13, 307480), (20, 199862), (26, 153740), (40, 99931), (52, 76870), (65, 61496), (104, 38435), (130, 30748), (260, 15374), (520, 7687)]