51318460

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{4003}}^1$

素因数の和:4653

約数の個数: 24

約数和(自身を含む): 107963856

約数和(自身を除く): 56645396

約数列:

[1, 2, 4, 5, 10, 20, 641, 1282, 2564, 3205, 4003, 6410, 8006, 12820, 16012, 20015, 40030, 80060, 2565923, 5131846, 10263692, 12829615, 25659230, 51318460]

約数ペア:

[(1, 51318460), (2, 25659230), (4, 12829615), (5, 10263692), (10, 5131846), (20, 2565923), (641, 80060), (1282, 40030), (2564, 20015), (3205, 16012), (4003, 12820), (6410, 8006)]