256918825

素因数分解:

$5^2\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{2731}}^1$

素因数の和:2865

約数の個数: 24

約数和(自身を含む): 329282496

約数和(自身を除く): 72363671

約数列:

[1, 5, 25, 53, 71, 265, 355, 1325, 1775, 2731, 3763, 13655, 18815, 68275, 94075, 144743, 193901, 723715, 969505, 3618575, 4847525, 10276753, 51383765, 256918825]

約数ペア:

[(1, 256918825), (5, 51383765), (25, 10276753), (53, 4847525), (71, 3618575), (265, 969505), (355, 723715), (1325, 193901), (1775, 144743), (2731, 94075), (3763, 68275), (13655, 18815)]