31503940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{121169}}^1$

素因数の和:121191

約数の個数: 24

約数和(自身を含む): 71247960

約数和(自身を除く): 39744020

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 121169, 242338, 484676, 605845, 1211690, 1575197, 2423380, 3150394, 6300788, 7875985, 15751970, 31503940]

約数ペア:

[(1, 31503940), (2, 15751970), (4, 7875985), (5, 6300788), (10, 3150394), (13, 2423380), (20, 1575197), (26, 1211690), (52, 605845), (65, 484676), (130, 242338), (260, 121169)]