1261991128

素因数分解:

$2^3\times {\mathrm{383}}^1\times {\mathrm{419}}^1\times {\mathrm{983}}^1$

素因数の和:1791

約数の個数: 32

約数和(自身を含む): 2380492800

約数和(自身を除く): 1118501672

約数列:

[1, 2, 4, 8, 383, 419, 766, 838, 983, 1532, 1676, 1966, 3064, 3352, 3932, 7864, 160477, 320954, 376489, 411877, 641908, 752978, 823754, 1283816, 1505956, 1647508, 3011912, 3295016, 157748891, 315497782, 630995564, 1261991128]

約数ペア:

[(1, 1261991128), (2, 630995564), (4, 315497782), (8, 157748891), (383, 3295016), (419, 3011912), (766, 1647508), (838, 1505956), (983, 1283816), (1532, 823754), (1676, 752978), (1966, 641908), (3064, 411877), (3352, 376489), (3932, 320954), (7864, 160477)]