20011110

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{13613}}^1$

素因数の和:13637

約数の個数: 48

約数和(自身を含む): 55871856

約数和(自身を除く): 35860746

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 490, 735, 1470, 13613, 27226, 40839, 68065, 81678, 95291, 136130, 190582, 204195, 285873, 408390, 476455, 571746, 667037, 952910, 1334074, 1429365, 2001111, 2858730, 3335185, 4002222, 6670370, 10005555, 20011110]

約数ペア:

[(1, 20011110), (2, 10005555), (3, 6670370), (5, 4002222), (6, 3335185), (7, 2858730), (10, 2001111), (14, 1429365), (15, 1334074), (21, 952910), (30, 667037), (35, 571746), (42, 476455), (49, 408390), (70, 285873), (98, 204195), (105, 190582), (147, 136130), (210, 95291), (245, 81678), (294, 68065), (490, 40839), (735, 27226), (1470, 13613)]