1580140

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^2\times {\mathrm{47}}^1$

素因数の和:138

約数の個数: 36

約数和(自身を含む): 3473568

約数和(自身を除く): 1893428

約数列:

[1, 2, 4, 5, 10, 20, 41, 47, 82, 94, 164, 188, 205, 235, 410, 470, 820, 940, 1681, 1927, 3362, 3854, 6724, 7708, 8405, 9635, 16810, 19270, 33620, 38540, 79007, 158014, 316028, 395035, 790070, 1580140]

約数ペア:

[(1, 1580140), (2, 790070), (4, 395035), (5, 316028), (10, 158014), (20, 79007), (41, 38540), (47, 33620), (82, 19270), (94, 16810), (164, 9635), (188, 8405), (205, 7708), (235, 6724), (410, 3854), (470, 3362), (820, 1927), (940, 1681)]