826638620

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{18041}}^1$

素因数の和:18158

約数の個数: 48

約数和(自身を含む): 1818633600

約数和(自身を除く): 991994980

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 79, 116, 145, 158, 290, 316, 395, 580, 790, 1580, 2291, 4582, 9164, 11455, 18041, 22910, 36082, 45820, 72164, 90205, 180410, 360820, 523189, 1046378, 1425239, 2092756, 2615945, 2850478, 5231890, 5700956, 7126195, 10463780, 14252390, 28504780, 41331931, 82663862, 165327724, 206659655, 413319310, 826638620]

約数ペア:

[(1, 826638620), (2, 413319310), (4, 206659655), (5, 165327724), (10, 82663862), (20, 41331931), (29, 28504780), (58, 14252390), (79, 10463780), (116, 7126195), (145, 5700956), (158, 5231890), (290, 2850478), (316, 2615945), (395, 2092756), (580, 1425239), (790, 1046378), (1580, 523189), (2291, 360820), (4582, 180410), (9164, 90205), (11455, 72164), (18041, 45820), (22910, 36082)]