90217540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{644411}}^1$

素因数の和:644427

約数の個数: 24

約数和(自身を含む): 216522432

約数和(自身を除く): 126304892

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 644411, 1288822, 2577644, 3222055, 4510877, 6444110, 9021754, 12888220, 18043508, 22554385, 45108770, 90217540]

約数ペア:

[(1, 90217540), (2, 45108770), (4, 22554385), (5, 18043508), (7, 12888220), (10, 9021754), (14, 6444110), (20, 4510877), (28, 3222055), (35, 2577644), (70, 1288822), (140, 644411)]