90228560

素因数分解:

$2^4\times 5^1\times {\mathrm{1127857}}^1$

素因数の和:1127870

約数の個数: 20

約数和(自身を含む): 209781588

約数和(自身を除く): 119553028

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1127857, 2255714, 4511428, 5639285, 9022856, 11278570, 18045712, 22557140, 45114280, 90228560]

約数ペア:

[(1, 90228560), (2, 45114280), (4, 22557140), (5, 18045712), (8, 11278570), (10, 9022856), (16, 5639285), (20, 4511428), (40, 2255714), (80, 1127857)]