51290480

素因数分解:

$2^4\times 5^1\times {\mathrm{641131}}^1$

素因数の和:641144

約数の個数: 20

約数和(自身を含む): 119250552

約数和(自身を除く): 67960072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 641131, 1282262, 2564524, 3205655, 5129048, 6411310, 10258096, 12822620, 25645240, 51290480]

約数ペア:

[(1, 51290480), (2, 25645240), (4, 12822620), (5, 10258096), (8, 6411310), (10, 5129048), (16, 3205655), (20, 2564524), (40, 1282262), (80, 641131)]