31522580

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{281}}^1$

素因数の和:440

約数の個数: 48

約数和(自身を含む): 68221440

約数和(自身を除く): 36698860

約数列:

[1, 2, 4, 5, 10, 20, 71, 79, 142, 158, 281, 284, 316, 355, 395, 562, 710, 790, 1124, 1405, 1420, 1580, 2810, 5609, 5620, 11218, 19951, 22199, 22436, 28045, 39902, 44398, 56090, 79804, 88796, 99755, 110995, 112180, 199510, 221990, 399020, 443980, 1576129, 3152258, 6304516, 7880645, 15761290, 31522580]

約数ペア:

[(1, 31522580), (2, 15761290), (4, 7880645), (5, 6304516), (10, 3152258), (20, 1576129), (71, 443980), (79, 399020), (142, 221990), (158, 199510), (281, 112180), (284, 110995), (316, 99755), (355, 88796), (395, 79804), (562, 56090), (710, 44398), (790, 39902), (1124, 28045), (1405, 22436), (1420, 22199), (1580, 19951), (2810, 11218), (5609, 5620)]