399543976

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{397}}^1\times {\mathrm{9677}}^1$

素因数の和:10093

約数の個数: 32

約数和(自身を含む): 808887240

約数和(自身を除く): 409343264

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 397, 794, 1588, 3176, 5161, 9677, 10322, 19354, 20644, 38708, 41288, 77416, 125801, 251602, 503204, 1006408, 3841769, 7683538, 15367076, 30734152, 49942997, 99885994, 199771988, 399543976]

約数ペア:

[(1, 399543976), (2, 199771988), (4, 99885994), (8, 49942997), (13, 30734152), (26, 15367076), (52, 7683538), (104, 3841769), (397, 1006408), (794, 503204), (1588, 251602), (3176, 125801), (5161, 77416), (9677, 41288), (10322, 38708), (19354, 20644)]