257519360

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{701}}^1$

素因数の和:770

約数の個数: 144

約数和(自身を含む): 723183552

約数和(自身を除く): 465664192

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 41, 56, 64, 70, 80, 82, 112, 128, 140, 160, 164, 205, 224, 256, 280, 287, 320, 328, 410, 448, 560, 574, 640, 656, 701, 820, 896, 1120, 1148, 1280, 1312, 1402, 1435, 1640, 1792, 2240, 2296, 2624, 2804, 2870, 3280, 3505, 4480, 4592, 4907, 5248, 5608, 5740, 6560, 7010, 8960, 9184, 9814, 10496, 11216, 11480, 13120, 14020, 18368, 19628, 22432, 22960, 24535, 26240, 28040, 28741, 36736, 39256, 44864, 45920, 49070, 52480, 56080, 57482, 73472, 78512, 89728, 91840, 98140, 112160, 114964, 143705, 157024, 179456, 183680, 196280, 201187, 224320, 229928, 287410, 314048, 367360, 392560, 402374, 448640, 459856, 574820, 628096, 785120, 804748, 897280, 919712, 1005935, 1149640, 1256192, 1570240, 1609496, 1839424, 2011870, 2299280, 3140480, 3218992, 3678848, 4023740, 4598560, 6280960, 6437984, 7357696, 8047480, 9197120, 12875968, 16094960, 18394240, 25751936, 32189920, 36788480, 51503872, 64379840, 128759680, 257519360]

約数ペア:

[(1, 257519360), (2, 128759680), (4, 64379840), (5, 51503872), (7, 36788480), (8, 32189920), (10, 25751936), (14, 18394240), (16, 16094960), (20, 12875968), (28, 9197120), (32, 8047480), (35, 7357696), (40, 6437984), (41, 6280960), (56, 4598560), (64, 4023740), (70, 3678848), (80, 3218992), (82, 3140480), (112, 2299280), (128, 2011870), (140, 1839424), (160, 1609496), (164, 1570240), (205, 1256192), (224, 1149640), (256, 1005935), (280, 919712), (287, 897280), (320, 804748), (328, 785120), (410, 628096), (448, 574820), (560, 459856), (574, 448640), (640, 402374), (656, 392560), (701, 367360), (820, 314048), (896, 287410), (1120, 229928), (1148, 224320), (1280, 201187), (1312, 196280), (1402, 183680), (1435, 179456), (1640, 157024), (1792, 143705), (2240, 114964), (2296, 112160), (2624, 98140), (2804, 91840), (2870, 89728), (3280, 78512), (3505, 73472), (4480, 57482), (4592, 56080), (4907, 52480), (5248, 49070), (5608, 45920), (5740, 44864), (6560, 39256), (7010, 36736), (8960, 28741), (9184, 28040), (9814, 26240), (10496, 24535), (11216, 22960), (11480, 22432), (13120, 19628), (14020, 18368)]