89907580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{642197}}^1$

素因数の和:642213

約数の個数: 24

約数和(自身を含む): 215778528

約数和(自身を除く): 125870948

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 642197, 1284394, 2568788, 3210985, 4495379, 6421970, 8990758, 12843940, 17981516, 22476895, 44953790, 89907580]

約数ペア:

[(1, 89907580), (2, 44953790), (4, 22476895), (5, 17981516), (7, 12843940), (10, 8990758), (14, 6421970), (20, 4495379), (28, 3210985), (35, 2568788), (70, 1284394), (140, 642197)]