2143160

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{409}}^1$

素因数の和:551

約数の個数: 32

約数和(自身を含む): 4870800

約数和(自身を除く): 2727640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 409, 524, 655, 818, 1048, 1310, 1636, 2045, 2620, 3272, 4090, 5240, 8180, 16360, 53579, 107158, 214316, 267895, 428632, 535790, 1071580, 2143160]

約数ペア:

[(1, 2143160), (2, 1071580), (4, 535790), (5, 428632), (8, 267895), (10, 214316), (20, 107158), (40, 53579), (131, 16360), (262, 8180), (409, 5240), (524, 4090), (655, 3272), (818, 2620), (1048, 2045), (1310, 1636)]