289301380

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{97081}}^1$

素因数の和:97239

約数の個数: 24

約数和(自身を含む): 611616600

約数和(自身を除く): 322315220

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 97081, 194162, 388324, 485405, 970810, 1941620, 14465069, 28930138, 57860276, 72325345, 144650690, 289301380]

約数ペア:

[(1, 289301380), (2, 144650690), (4, 72325345), (5, 57860276), (10, 28930138), (20, 14465069), (149, 1941620), (298, 970810), (596, 485405), (745, 388324), (1490, 194162), (2980, 97081)]