817880048

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{647057}}^1$

素因数の和:647144

約数の個数: 20

約数和(自身を含む): 1604703840

約数和(自身を除く): 786823792

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 647057, 1294114, 2588228, 5176456, 10352912, 51117503, 102235006, 204470012, 408940024, 817880048]

約数ペア:

[(1, 817880048), (2, 408940024), (4, 204470012), (8, 102235006), (16, 51117503), (79, 10352912), (158, 5176456), (316, 2588228), (632, 1294114), (1264, 647057)]