1365020

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{521}}^1$

素因数の和:661

約数の個数: 24

約数和(自身を含む): 2893968

約数和(自身を除く): 1528948

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 521, 524, 655, 1042, 1310, 2084, 2605, 2620, 5210, 10420, 68251, 136502, 273004, 341255, 682510, 1365020]

約数ペア:

[(1, 1365020), (2, 682510), (4, 341255), (5, 273004), (10, 136502), (20, 68251), (131, 10420), (262, 5210), (521, 2620), (524, 2605), (655, 2084), (1042, 1310)]