31190120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59981}}^1$

素因数の和:60005

約数の個数: 32

約数和(自身を含む): 75577320

約数和(自身を除く): 44387200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 59981, 119962, 239924, 299905, 479848, 599810, 779753, 1199620, 1559506, 2399240, 3119012, 3898765, 6238024, 7797530, 15595060, 31190120]

約数ペア:

[(1, 31190120), (2, 15595060), (4, 7797530), (5, 6238024), (8, 3898765), (10, 3119012), (13, 2399240), (20, 1559506), (26, 1199620), (40, 779753), (52, 599810), (65, 479848), (104, 299905), (130, 239924), (260, 119962), (520, 59981)]