999979420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{4545361}}^1$

素因数の和:4545381

約数の個数: 24

約数和(自身を含む): 2290862448

約数和(自身を除く): 1290883028

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 4545361, 9090722, 18181444, 22726805, 45453610, 49998971, 90907220, 99997942, 199995884, 249994855, 499989710, 999979420]

約数ペア:

[(1, 999979420), (2, 499989710), (4, 249994855), (5, 199995884), (10, 99997942), (11, 90907220), (20, 49998971), (22, 45453610), (44, 22726805), (55, 18181444), (110, 9090722), (220, 4545361)]