31219180

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{21383}}^1$

素因数の和:21465

約数の個数: 24

約数和(自身を含む): 66461472

約数和(自身を除く): 35242292

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 21383, 42766, 85532, 106915, 213830, 427660, 1560959, 3121918, 6243836, 7804795, 15609590, 31219180]

約数ペア:

[(1, 31219180), (2, 15609590), (4, 7804795), (5, 6243836), (10, 3121918), (20, 1560959), (73, 427660), (146, 213830), (292, 106915), (365, 85532), (730, 42766), (1460, 21383)]