20500460

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{113}}^1\times {\mathrm{193}}^1$

素因数の和:362

約数の個数: 48

約数和(自身を含む): 44585856

約数和(自身を除く): 24085396

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 113, 188, 193, 226, 235, 386, 452, 470, 565, 772, 940, 965, 1130, 1930, 2260, 3860, 5311, 9071, 10622, 18142, 21244, 21809, 26555, 36284, 43618, 45355, 53110, 87236, 90710, 106220, 109045, 181420, 218090, 436180, 1025023, 2050046, 4100092, 5125115, 10250230, 20500460]

約数ペア:

[(1, 20500460), (2, 10250230), (4, 5125115), (5, 4100092), (10, 2050046), (20, 1025023), (47, 436180), (94, 218090), (113, 181420), (188, 109045), (193, 106220), (226, 90710), (235, 87236), (386, 53110), (452, 45355), (470, 43618), (565, 36284), (772, 26555), (940, 21809), (965, 21244), (1130, 18142), (1930, 10622), (2260, 9071), (3860, 5311)]