20527240

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{5081}}^1$

素因数の和:5193

約数の個数: 32

約数和(自身を含む): 46652760

約数和(自身を除く): 26125520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 5081, 10162, 20324, 25405, 40648, 50810, 101620, 203240, 513181, 1026362, 2052724, 2565905, 4105448, 5131810, 10263620, 20527240]

約数ペア:

[(1, 20527240), (2, 10263620), (4, 5131810), (5, 4105448), (8, 2565905), (10, 2052724), (20, 1026362), (40, 513181), (101, 203240), (202, 101620), (404, 50810), (505, 40648), (808, 25405), (1010, 20324), (2020, 10162), (4040, 5081)]