28928420

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{14321}}^1$

素因数の和:14431

約数の個数: 24

約数和(自身を含む): 61355448

約数和(自身を除く): 32427028

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 14321, 28642, 57284, 71605, 143210, 286420, 1446421, 2892842, 5785684, 7232105, 14464210, 28928420]

約数ペア:

[(1, 28928420), (2, 14464210), (4, 7232105), (5, 5785684), (10, 2892842), (20, 1446421), (101, 286420), (202, 143210), (404, 71605), (505, 57284), (1010, 28642), (2020, 14321)]