20158877906

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1\times {\mathrm{661}}^1$

素因数の和:1027

約数の個数: 64

約数和(自身を含む): 33205920000

約数和(自身を除く): 13047042094

約数列:

[1, 2, 19, 37, 38, 74, 109, 199, 218, 398, 661, 703, 1322, 1406, 2071, 3781, 4033, 4142, 7363, 7562, 8066, 12559, 14726, 21691, 24457, 25118, 43382, 48914, 72049, 76627, 131539, 139897, 144098, 153254, 263078, 279794, 412129, 464683, 802567, 824258, 929366, 1368931, 1605134, 2499241, 2665813, 2737862, 4866943, 4998482, 5331626, 9733886, 14337751, 15248773, 28675502, 30497546, 50650447, 92471917, 101300894, 184943834, 272417269, 530496787, 544834538, 1060993574, 10079438953, 20158877906]

約数ペア:

[(1, 20158877906), (2, 10079438953), (19, 1060993574), (37, 544834538), (38, 530496787), (74, 272417269), (109, 184943834), (199, 101300894), (218, 92471917), (398, 50650447), (661, 30497546), (703, 28675502), (1322, 15248773), (1406, 14337751), (2071, 9733886), (3781, 5331626), (4033, 4998482), (4142, 4866943), (7363, 2737862), (7562, 2665813), (8066, 2499241), (12559, 1605134), (14726, 1368931), (21691, 929366), (24457, 824258), (25118, 802567), (43382, 464683), (48914, 412129), (72049, 279794), (76627, 263078), (131539, 153254), (139897, 144098)]