1330891880

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{253987}}^1$

素因数の和:254129

約数の個数: 32

約数和(自身を含む): 3017377440

約数和(自身を除く): 1686485560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 253987, 507974, 1015948, 1269935, 2031896, 2539870, 5079740, 10159480, 33272297, 66544594, 133089188, 166361485, 266178376, 332722970, 665445940, 1330891880]

約数ペア:

[(1, 1330891880), (2, 665445940), (4, 332722970), (5, 266178376), (8, 166361485), (10, 133089188), (20, 66544594), (40, 33272297), (131, 10159480), (262, 5079740), (524, 2539870), (655, 2031896), (1048, 1269935), (1310, 1015948), (2620, 507974), (5240, 253987)]