90221420

素因数分解:

$2^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{19699}}^1$

素因数の和:19937

約数の個数: 24

約数和(自身を含む): 190302000

約数和(自身を除く): 100080580

約数列:

[1, 2, 4, 5, 10, 20, 229, 458, 916, 1145, 2290, 4580, 19699, 39398, 78796, 98495, 196990, 393980, 4511071, 9022142, 18044284, 22555355, 45110710, 90221420]

約数ペア:

[(1, 90221420), (2, 45110710), (4, 22555355), (5, 18044284), (10, 9022142), (20, 4511071), (229, 393980), (458, 196990), (916, 98495), (1145, 78796), (2290, 39398), (4580, 19699)]