20511070

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{2633}}^1$

素因数の和:2700

約数の個数: 32

約数和(自身を含む): 39826080

約数和(自身を除く): 19315010

約数列:

[1, 2, 5, 10, 19, 38, 41, 82, 95, 190, 205, 410, 779, 1558, 2633, 3895, 5266, 7790, 13165, 26330, 50027, 100054, 107953, 215906, 250135, 500270, 539765, 1079530, 2051107, 4102214, 10255535, 20511070]

約数ペア:

[(1, 20511070), (2, 10255535), (5, 4102214), (10, 2051107), (19, 1079530), (38, 539765), (41, 500270), (82, 250135), (95, 215906), (190, 107953), (205, 100054), (410, 50027), (779, 26330), (1558, 13165), (2633, 7790), (3895, 5266)]