644290444

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{563}}^1\times {\mathrm{1777}}^1$

素因数の和:2374

約数の個数: 48

約数和(自身を含む): 1347752448

約数和(自身を除く): 703462004

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 563, 644, 1126, 1777, 2252, 3554, 3941, 7108, 7882, 12439, 12949, 15764, 24878, 25898, 40871, 49756, 51796, 81742, 90643, 163484, 181286, 286097, 362572, 572194, 1000451, 1144388, 2000902, 4001804, 7003157, 14006314, 23010373, 28012628, 46020746, 92041492, 161072611, 322145222, 644290444]

約数ペア:

[(1, 644290444), (2, 322145222), (4, 161072611), (7, 92041492), (14, 46020746), (23, 28012628), (28, 23010373), (46, 14006314), (92, 7003157), (161, 4001804), (322, 2000902), (563, 1144388), (644, 1000451), (1126, 572194), (1777, 362572), (2252, 286097), (3554, 181286), (3941, 163484), (7108, 90643), (7882, 81742), (12439, 51796), (12949, 49756), (15764, 40871), (24878, 25898)]