999494840

素因数分解:

$2^3\times 5^1\times {\mathrm{523}}^1\times {\mathrm{47777}}^1$

素因数の和:48311

約数の個数: 32

約数和(自身を含む): 2253210480

約数和(自身を除く): 1253715640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 523, 1046, 2092, 2615, 4184, 5230, 10460, 20920, 47777, 95554, 191108, 238885, 382216, 477770, 955540, 1911080, 24987371, 49974742, 99949484, 124936855, 199898968, 249873710, 499747420, 999494840]

約数ペア:

[(1, 999494840), (2, 499747420), (4, 249873710), (5, 199898968), (8, 124936855), (10, 99949484), (20, 49974742), (40, 24987371), (523, 1911080), (1046, 955540), (2092, 477770), (2615, 382216), (4184, 238885), (5230, 191108), (10460, 95554), (20920, 47777)]