18714020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{431}}^1$

素因数の和:620

約数の個数: 48

約数和(自身を含む): 42674688

約数和(自身を除く): 23960668

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 167, 260, 334, 431, 668, 835, 862, 1670, 1724, 2155, 2171, 3340, 4310, 4342, 5603, 8620, 8684, 10855, 11206, 21710, 22412, 28015, 43420, 56030, 71977, 112060, 143954, 287908, 359885, 719770, 935701, 1439540, 1871402, 3742804, 4678505, 9357010, 18714020]

約数ペア:

[(1, 18714020), (2, 9357010), (4, 4678505), (5, 3742804), (10, 1871402), (13, 1439540), (20, 935701), (26, 719770), (52, 359885), (65, 287908), (130, 143954), (167, 112060), (260, 71977), (334, 56030), (431, 43420), (668, 28015), (835, 22412), (862, 21710), (1670, 11206), (1724, 10855), (2155, 8684), (2171, 8620), (3340, 5603), (4310, 4342)]