304181420

素因数分解:

$2^2\times 5^1\times {\mathrm{349}}^1\times {\mathrm{43579}}^1$

素因数の和:43937

約数の個数: 24

約数和(自身を含む): 640626000

約数和(自身を除く): 336444580

約数列:

[1, 2, 4, 5, 10, 20, 349, 698, 1396, 1745, 3490, 6980, 43579, 87158, 174316, 217895, 435790, 871580, 15209071, 30418142, 60836284, 76045355, 152090710, 304181420]

約数ペア:

[(1, 304181420), (2, 152090710), (4, 76045355), (5, 60836284), (10, 30418142), (20, 15209071), (349, 871580), (698, 435790), (1396, 217895), (1745, 174316), (3490, 87158), (6980, 43579)]