19627660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{5807}}^1$

素因数の和:5842

約数の個数: 36

約数和(自身を含む): 44640288

約数和(自身を除く): 25012628

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 5807, 11614, 23228, 29035, 58070, 75491, 116140, 150982, 301964, 377455, 754910, 981383, 1509820, 1962766, 3925532, 4906915, 9813830, 19627660]

約数ペア:

[(1, 19627660), (2, 9813830), (4, 4906915), (5, 3925532), (10, 1962766), (13, 1509820), (20, 981383), (26, 754910), (52, 377455), (65, 301964), (130, 150982), (169, 116140), (260, 75491), (338, 58070), (676, 29035), (845, 23228), (1690, 11614), (3380, 5807)]