26818420

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{2731}}^1$

素因数の和:3231

約数の個数: 24

約数和(自身を含む): 56454048

約数和(自身を除く): 29635628

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 1964, 2455, 2731, 4910, 5462, 9820, 10924, 13655, 27310, 54620, 1340921, 2681842, 5363684, 6704605, 13409210, 26818420]

約数ペア:

[(1, 26818420), (2, 13409210), (4, 6704605), (5, 5363684), (10, 2681842), (20, 1340921), (491, 54620), (982, 27310), (1964, 13655), (2455, 10924), (2731, 9820), (4910, 5462)]