81744080

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{4889}}^1$

素因数の和:4932

約数の個数: 80

約数和(自身を含む): 218289600

約数和(自身を除く): 136545520

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 38, 40, 44, 55, 76, 80, 88, 95, 110, 152, 176, 190, 209, 220, 304, 380, 418, 440, 760, 836, 880, 1045, 1520, 1672, 2090, 3344, 4180, 4889, 8360, 9778, 16720, 19556, 24445, 39112, 48890, 53779, 78224, 92891, 97780, 107558, 185782, 195560, 215116, 268895, 371564, 391120, 430232, 464455, 537790, 743128, 860464, 928910, 1021801, 1075580, 1486256, 1857820, 2043602, 2151160, 3715640, 4087204, 4302320, 5109005, 7431280, 8174408, 10218010, 16348816, 20436020, 40872040, 81744080]

約数ペア:

[(1, 81744080), (2, 40872040), (4, 20436020), (5, 16348816), (8, 10218010), (10, 8174408), (11, 7431280), (16, 5109005), (19, 4302320), (20, 4087204), (22, 3715640), (38, 2151160), (40, 2043602), (44, 1857820), (55, 1486256), (76, 1075580), (80, 1021801), (88, 928910), (95, 860464), (110, 743128), (152, 537790), (176, 464455), (190, 430232), (209, 391120), (220, 371564), (304, 268895), (380, 215116), (418, 195560), (440, 185782), (760, 107558), (836, 97780), (880, 92891), (1045, 78224), (1520, 53779), (1672, 48890), (2090, 39112), (3344, 24445), (4180, 19556), (4889, 16720), (8360, 9778)]