20145460

素因数分解:

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

素因数の和:10083

約数の個数: 24

約数和(自身を含む): 42728616

約数和(自身を除く): 22583156

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 9973, 19946, 39892, 49865, 99730, 199460, 1007273, 2014546, 4029092, 5036365, 10072730, 20145460]

約数ペア:

[(1, 20145460), (2, 10072730), (4, 5036365), (5, 4029092), (10, 2014546), (20, 1007273), (101, 199460), (202, 99730), (404, 49865), (505, 39892), (1010, 19946), (2020, 9973)]