718832020

素因数分解:

$2^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{90533}}^1$

素因数の和:90939

約数の個数: 24

約数和(自身を含む): 1513366344

約数和(自身を除く): 794534324

約数列:

[1, 2, 4, 5, 10, 20, 397, 794, 1588, 1985, 3970, 7940, 90533, 181066, 362132, 452665, 905330, 1810660, 35941601, 71883202, 143766404, 179708005, 359416010, 718832020]

約数ペア:

[(1, 718832020), (2, 359416010), (4, 179708005), (5, 143766404), (10, 71883202), (20, 35941601), (397, 1810660), (794, 905330), (1588, 452665), (1985, 362132), (3970, 181066), (7940, 90533)]