1640392664

素因数分解:

$2^3\times {\mathrm{19}}^2\times {\mathrm{677}}^1\times {\mathrm{839}}^1$

素因数の和:1560

約数の個数: 48

約数和(自身を含む): 3254806800

約数和(自身を除く): 1614414136

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 361, 677, 722, 839, 1354, 1444, 1678, 2708, 2888, 3356, 5416, 6712, 12863, 15941, 25726, 31882, 51452, 63764, 102904, 127528, 244397, 302879, 488794, 568003, 605758, 977588, 1136006, 1211516, 1955176, 2272012, 2423032, 4544024, 10792057, 21584114, 43168228, 86336456, 205049083, 410098166, 820196332, 1640392664]

約数ペア:

[(1, 1640392664), (2, 820196332), (4, 410098166), (8, 205049083), (19, 86336456), (38, 43168228), (76, 21584114), (152, 10792057), (361, 4544024), (677, 2423032), (722, 2272012), (839, 1955176), (1354, 1211516), (1444, 1136006), (1678, 977588), (2708, 605758), (2888, 568003), (3356, 488794), (5416, 302879), (6712, 244397), (12863, 127528), (15941, 102904), (25726, 63764), (31882, 51452)]