20106020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{1549}}^1$

素因数の和:1628

約数の個数: 48

約数和(自身を含む): 46872000

約数和(自身を除く): 26765980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 59, 110, 118, 220, 236, 295, 590, 649, 1180, 1298, 1549, 2596, 3098, 3245, 6196, 6490, 7745, 12980, 15490, 17039, 30980, 34078, 68156, 85195, 91391, 170390, 182782, 340780, 365564, 456955, 913910, 1005301, 1827820, 2010602, 4021204, 5026505, 10053010, 20106020]

約数ペア:

[(1, 20106020), (2, 10053010), (4, 5026505), (5, 4021204), (10, 2010602), (11, 1827820), (20, 1005301), (22, 913910), (44, 456955), (55, 365564), (59, 340780), (110, 182782), (118, 170390), (220, 91391), (236, 85195), (295, 68156), (590, 34078), (649, 30980), (1180, 17039), (1298, 15490), (1549, 12980), (2596, 7745), (3098, 6490), (3245, 6196)]