90690640

素因数分解:

$2^4\times 5^1\times {\mathrm{1133633}}^1$

素因数の和:1133646

約数の個数: 20

約数和(自身を含む): 210855924

約数和(自身を除く): 120165284

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1133633, 2267266, 4534532, 5668165, 9069064, 11336330, 18138128, 22672660, 45345320, 90690640]

約数ペア:

[(1, 90690640), (2, 45345320), (4, 22672660), (5, 18138128), (8, 11336330), (10, 9069064), (16, 5668165), (20, 4534532), (40, 2267266), (80, 1133633)]