40872040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{4889}}^1$

素因数の和:4930

約数の個数: 64

約数和(自身を含む): 105624000

約数和(自身を除く): 64751960

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 76, 88, 95, 110, 152, 190, 209, 220, 380, 418, 440, 760, 836, 1045, 1672, 2090, 4180, 4889, 8360, 9778, 19556, 24445, 39112, 48890, 53779, 92891, 97780, 107558, 185782, 195560, 215116, 268895, 371564, 430232, 464455, 537790, 743128, 928910, 1021801, 1075580, 1857820, 2043602, 2151160, 3715640, 4087204, 5109005, 8174408, 10218010, 20436020, 40872040]

約数ペア:

[(1, 40872040), (2, 20436020), (4, 10218010), (5, 8174408), (8, 5109005), (10, 4087204), (11, 3715640), (19, 2151160), (20, 2043602), (22, 1857820), (38, 1075580), (40, 1021801), (44, 928910), (55, 743128), (76, 537790), (88, 464455), (95, 430232), (110, 371564), (152, 268895), (190, 215116), (209, 195560), (220, 185782), (380, 107558), (418, 97780), (440, 92891), (760, 53779), (836, 48890), (1045, 39112), (1672, 24445), (2090, 19556), (4180, 9778), (4889, 8360)]