645173670

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{21505789}}^1$

素因数の和:21505799

約数の個数: 16

約数和(自身を含む): 1548416880

約数和(自身を除く): 903243210

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 21505789, 43011578, 64517367, 107528945, 129034734, 215057890, 322586835, 645173670]

約数ペア:

[(1, 645173670), (2, 322586835), (3, 215057890), (5, 129034734), (6, 107528945), (10, 64517367), (15, 43011578), (30, 21505789)]