49793720

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{197}}^1$

素因数の和:368

約数の個数: 64

約数和(自身を含む): 115473600

約数和(自身を除く): 65679880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 89, 142, 178, 197, 284, 355, 356, 394, 445, 568, 710, 712, 788, 890, 985, 1420, 1576, 1780, 1970, 2840, 3560, 3940, 6319, 7880, 12638, 13987, 17533, 25276, 27974, 31595, 35066, 50552, 55948, 63190, 69935, 70132, 87665, 111896, 126380, 139870, 140264, 175330, 252760, 279740, 350660, 559480, 701320, 1244843, 2489686, 4979372, 6224215, 9958744, 12448430, 24896860, 49793720]

約数ペア:

[(1, 49793720), (2, 24896860), (4, 12448430), (5, 9958744), (8, 6224215), (10, 4979372), (20, 2489686), (40, 1244843), (71, 701320), (89, 559480), (142, 350660), (178, 279740), (197, 252760), (284, 175330), (355, 140264), (356, 139870), (394, 126380), (445, 111896), (568, 87665), (710, 70132), (712, 69935), (788, 63190), (890, 55948), (985, 50552), (1420, 35066), (1576, 31595), (1780, 27974), (1970, 25276), (2840, 17533), (3560, 13987), (3940, 12638), (6319, 7880)]