1279928

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{397}}^1$

素因数の和:447

約数の個数: 32

約数和(自身を含む): 2674560

約数和(自身を除く): 1394632

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 248, 397, 403, 794, 806, 1588, 1612, 3176, 3224, 5161, 10322, 12307, 20644, 24614, 41288, 49228, 98456, 159991, 319982, 639964, 1279928]

約数ペア:

[(1, 1279928), (2, 639964), (4, 319982), (8, 159991), (13, 98456), (26, 49228), (31, 41288), (52, 24614), (62, 20644), (104, 12307), (124, 10322), (248, 5161), (397, 3224), (403, 3176), (794, 1612), (806, 1588)]