20829770

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{983}}^1$

素因数の和:1166

約数の個数: 32

約数和(自身を含む): 40666752

約数和(自身を除く): 19836982

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 163, 326, 815, 983, 1630, 1966, 2119, 4238, 4915, 9830, 10595, 12779, 21190, 25558, 63895, 127790, 160229, 320458, 801145, 1602290, 2082977, 4165954, 10414885, 20829770]

約数ペア:

[(1, 20829770), (2, 10414885), (5, 4165954), (10, 2082977), (13, 1602290), (26, 801145), (65, 320458), (130, 160229), (163, 127790), (326, 63895), (815, 25558), (983, 21190), (1630, 12779), (1966, 10595), (2119, 9830), (4238, 4915)]