1657667020

素因数分解:

$2^2\times 5^1\times {\mathrm{1621}}^1\times {\mathrm{51131}}^1$

素因数の和:52761

約数の個数: 24

約数和(自身を含む): 3483316368

約数和(自身を除く): 1825649348

約数列:

[1, 2, 4, 5, 10, 20, 1621, 3242, 6484, 8105, 16210, 32420, 51131, 102262, 204524, 255655, 511310, 1022620, 82883351, 165766702, 331533404, 414416755, 828833510, 1657667020]

約数ペア:

[(1, 1657667020), (2, 828833510), (4, 414416755), (5, 331533404), (10, 165766702), (20, 82883351), (1621, 1022620), (3242, 511310), (6484, 255655), (8105, 204524), (16210, 102262), (32420, 51131)]