31664620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{121787}}^1$

素因数の和:121809

約数の個数: 24

約数和(自身を含む): 71611344

約数和(自身を除く): 39946724

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 121787, 243574, 487148, 608935, 1217870, 1583231, 2435740, 3166462, 6332924, 7916155, 15832310, 31664620]

約数ペア:

[(1, 31664620), (2, 15832310), (4, 7916155), (5, 6332924), (10, 3166462), (13, 2435740), (20, 1583231), (26, 1217870), (52, 608935), (65, 487148), (130, 243574), (260, 121787)]