40290920

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{9973}}^1$

素因数の和:10085

約数の個数: 32

約数和(自身を含む): 91561320

約数和(自身を除く): 51270400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 9973, 19946, 39892, 49865, 79784, 99730, 199460, 398920, 1007273, 2014546, 4029092, 5036365, 8058184, 10072730, 20145460, 40290920]

約数ペア:

[(1, 40290920), (2, 20145460), (4, 10072730), (5, 8058184), (8, 5036365), (10, 4029092), (20, 2014546), (40, 1007273), (101, 398920), (202, 199460), (404, 99730), (505, 79784), (808, 49865), (1010, 39892), (2020, 19946), (4040, 9973)]