405991256

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{397}}^1\times {\mathrm{11621}}^1$

素因数の和:12035

約数の個数: 32

約数和(自身を含む): 832600080

約数和(自身を除く): 426608824

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 397, 794, 1588, 3176, 4367, 8734, 11621, 17468, 23242, 34936, 46484, 92968, 127831, 255662, 511324, 1022648, 4613537, 9227074, 18454148, 36908296, 50748907, 101497814, 202995628, 405991256]

約数ペア:

[(1, 405991256), (2, 202995628), (4, 101497814), (8, 50748907), (11, 36908296), (22, 18454148), (44, 9227074), (88, 4613537), (397, 1022648), (794, 511324), (1588, 255662), (3176, 127831), (4367, 92968), (8734, 46484), (11621, 34936), (17468, 23242)]