20436020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{4889}}^1$

素因数の和:4928

約数の個数: 48

約数和(自身を含む): 49291200

約数和(自身を除く): 28855180

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 4889, 9778, 19556, 24445, 48890, 53779, 92891, 97780, 107558, 185782, 215116, 268895, 371564, 464455, 537790, 928910, 1021801, 1075580, 1857820, 2043602, 4087204, 5109005, 10218010, 20436020]

約数ペア:

[(1, 20436020), (2, 10218010), (4, 5109005), (5, 4087204), (10, 2043602), (11, 1857820), (19, 1075580), (20, 1021801), (22, 928910), (38, 537790), (44, 464455), (55, 371564), (76, 268895), (95, 215116), (110, 185782), (190, 107558), (209, 97780), (220, 92891), (380, 53779), (418, 48890), (836, 24445), (1045, 19556), (2090, 9778), (4180, 4889)]