20341490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{4229}}^1$

素因数の和:4286

約数の個数: 32

約数和(自身を含む): 40506480

約数和(自身を除く): 20164990

約数列:

[1, 2, 5, 10, 13, 26, 37, 65, 74, 130, 185, 370, 481, 962, 2405, 4229, 4810, 8458, 21145, 42290, 54977, 109954, 156473, 274885, 312946, 549770, 782365, 1564730, 2034149, 4068298, 10170745, 20341490]

約数ペア:

[(1, 20341490), (2, 10170745), (5, 4068298), (10, 2034149), (13, 1564730), (26, 782365), (37, 549770), (65, 312946), (74, 274885), (130, 156473), (185, 109954), (370, 54977), (481, 42290), (962, 21145), (2405, 8458), (4229, 4810)]