138333860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{141157}}^1$

素因数の和:141180

約数の個数: 36

約数和(自身を含む): 337932252

約数和(自身を除く): 199598392

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 141157, 282314, 564628, 705785, 988099, 1411570, 1976198, 2823140, 3952396, 4940495, 6916693, 9880990, 13833386, 19761980, 27666772, 34583465, 69166930, 138333860]

約数ペア:

[(1, 138333860), (2, 69166930), (4, 34583465), (5, 27666772), (7, 19761980), (10, 13833386), (14, 9880990), (20, 6916693), (28, 4940495), (35, 3952396), (49, 2823140), (70, 1976198), (98, 1411570), (140, 988099), (196, 705785), (245, 564628), (490, 282314), (980, 141157)]