1307665640

素因数分解:

$2^3\times 5^1\times {\mathrm{641}}^1\times {\mathrm{51001}}^1$

素因数の和:51653

約数の個数: 32

約数和(自身を含む): 2946895560

約数和(自身を除く): 1639229920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 641, 1282, 2564, 3205, 5128, 6410, 12820, 25640, 51001, 102002, 204004, 255005, 408008, 510010, 1020020, 2040040, 32691641, 65383282, 130766564, 163458205, 261533128, 326916410, 653832820, 1307665640]

約数ペア:

[(1, 1307665640), (2, 653832820), (4, 326916410), (5, 261533128), (8, 163458205), (10, 130766564), (20, 65383282), (40, 32691641), (641, 2040040), (1282, 1020020), (2564, 510010), (3205, 408008), (5128, 255005), (6410, 204004), (12820, 102002), (25640, 51001)]