87508420

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{43321}}^1$

素因数の和:43431

約数の個数: 24

約数和(自身を含む): 185591448

約数和(自身を除く): 98083028

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 43321, 86642, 173284, 216605, 433210, 866420, 4375421, 8750842, 17501684, 21877105, 43754210, 87508420]

約数ペア:

[(1, 87508420), (2, 43754210), (4, 21877105), (5, 17501684), (10, 8750842), (20, 4375421), (101, 866420), (202, 433210), (404, 216605), (505, 173284), (1010, 86642), (2020, 43321)]