86655980

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{42899}}^1$

素因数の和:43009

約数の個数: 24

約数和(自身を含む): 183783600

約数和(自身を除く): 97127620

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 42899, 85798, 171596, 214495, 428990, 857980, 4332799, 8665598, 17331196, 21663995, 43327990, 86655980]

約数ペア:

[(1, 86655980), (2, 43327990), (4, 21663995), (5, 17331196), (10, 8665598), (20, 4332799), (101, 857980), (202, 428990), (404, 214495), (505, 171596), (1010, 85798), (2020, 42899)]