638475260

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{679229}}^1$

素因数の和:679285

約数の個数: 24

約数和(自身を含む): 1369327680

約数和(自身を除く): 730852420

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 679229, 1358458, 2716916, 3396145, 6792290, 13584580, 31923763, 63847526, 127695052, 159618815, 319237630, 638475260]

約数ペア:

[(1, 638475260), (2, 319237630), (4, 159618815), (5, 127695052), (10, 63847526), (20, 31923763), (47, 13584580), (94, 6792290), (188, 3396145), (235, 2716916), (470, 1358458), (940, 679229)]