28655260

素因数分解:

$2^2\times 5^1\times {\mathrm{347}}^1\times {\mathrm{4129}}^1$

素因数の和:4485

約数の個数: 24

約数和(自身を含む): 60364080

約数和(自身を除く): 31708820

約数列:

[1, 2, 4, 5, 10, 20, 347, 694, 1388, 1735, 3470, 4129, 6940, 8258, 16516, 20645, 41290, 82580, 1432763, 2865526, 5731052, 7163815, 14327630, 28655260]

約数ペア:

[(1, 28655260), (2, 14327630), (4, 7163815), (5, 5731052), (10, 2865526), (20, 1432763), (347, 82580), (694, 41290), (1388, 20645), (1735, 16516), (3470, 8258), (4129, 6940)]