2551880

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{487}}^1$

素因数の和:629

約数の個数: 32

約数和(自身を含む): 5797440

約数和(自身を除く): 3245560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 487, 524, 655, 974, 1048, 1310, 1948, 2435, 2620, 3896, 4870, 5240, 9740, 19480, 63797, 127594, 255188, 318985, 510376, 637970, 1275940, 2551880]

約数ペア:

[(1, 2551880), (2, 1275940), (4, 637970), (5, 510376), (8, 318985), (10, 255188), (20, 127594), (40, 63797), (131, 19480), (262, 9740), (487, 5240), (524, 4870), (655, 3896), (974, 2620), (1048, 2435), (1310, 1948)]