1396757980

素因数分解:

$2^2\times 5^1\times {\mathrm{1051}}^1\times {\mathrm{66449}}^1$

素因数の和:67509

約数の個数: 24

約数和(自身を含む): 2936026800

約数和(自身を除く): 1539268820

約数列:

[1, 2, 4, 5, 10, 20, 1051, 2102, 4204, 5255, 10510, 21020, 66449, 132898, 265796, 332245, 664490, 1328980, 69837899, 139675798, 279351596, 349189495, 698378990, 1396757980]

約数ペア:

[(1, 1396757980), (2, 698378990), (4, 349189495), (5, 279351596), (10, 139675798), (20, 69837899), (1051, 1328980), (2102, 664490), (4204, 332245), (5255, 265796), (10510, 132898), (21020, 66449)]