8451142400

素因数分解:

$2^8\times 5^2\times {\mathrm{197}}^1\times {\mathrm{6703}}^1$

素因数の和:6926

約数の個数: 108

約数和(自身を含む): 21027216672

約数和(自身を除く): 12576074272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 197, 200, 256, 320, 394, 400, 640, 788, 800, 985, 1280, 1576, 1600, 1970, 3152, 3200, 3940, 4925, 6304, 6400, 6703, 7880, 9850, 12608, 13406, 15760, 19700, 25216, 26812, 31520, 33515, 39400, 50432, 53624, 63040, 67030, 78800, 107248, 126080, 134060, 157600, 167575, 214496, 252160, 268120, 315200, 335150, 428992, 536240, 630400, 670300, 857984, 1072480, 1260800, 1320491, 1340600, 1715968, 2144960, 2640982, 2681200, 4289920, 5281964, 5362400, 6602455, 8579840, 10563928, 10724800, 13204910, 21127856, 21449600, 26409820, 33012275, 42255712, 42899200, 52819640, 66024550, 84511424, 105639280, 132049100, 169022848, 211278560, 264098200, 338045696, 422557120, 528196400, 845114240, 1056392800, 1690228480, 2112785600, 4225571200, 8451142400]

約数ペア:

[(1, 8451142400), (2, 4225571200), (4, 2112785600), (5, 1690228480), (8, 1056392800), (10, 845114240), (16, 528196400), (20, 422557120), (25, 338045696), (32, 264098200), (40, 211278560), (50, 169022848), (64, 132049100), (80, 105639280), (100, 84511424), (128, 66024550), (160, 52819640), (197, 42899200), (200, 42255712), (256, 33012275), (320, 26409820), (394, 21449600), (400, 21127856), (640, 13204910), (788, 10724800), (800, 10563928), (985, 8579840), (1280, 6602455), (1576, 5362400), (1600, 5281964), (1970, 4289920), (3152, 2681200), (3200, 2640982), (3940, 2144960), (4925, 1715968), (6304, 1340600), (6400, 1320491), (6703, 1260800), (7880, 1072480), (9850, 857984), (12608, 670300), (13406, 630400), (15760, 536240), (19700, 428992), (25216, 335150), (26812, 315200), (31520, 268120), (33515, 252160), (39400, 214496), (50432, 167575), (53624, 157600), (63040, 134060), (67030, 126080), (78800, 107248)]