2151020

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{821}}^1$

素因数の和:961

約数の個数: 24

約数和(自身を含む): 4557168

約数和(自身を除く): 2406148

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 821, 1310, 1642, 2620, 3284, 4105, 8210, 16420, 107551, 215102, 430204, 537755, 1075510, 2151020]

約数ペア:

[(1, 2151020), (2, 1075510), (4, 537755), (5, 430204), (10, 215102), (20, 107551), (131, 16420), (262, 8210), (524, 4105), (655, 3284), (821, 2620), (1310, 1642)]