99587440

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{197}}^1$

素因数の和:370

約数の個数: 80

約数和(自身を含む): 238645440

約数和(自身を除く): 139058000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 89, 142, 178, 197, 284, 355, 356, 394, 445, 568, 710, 712, 788, 890, 985, 1136, 1420, 1424, 1576, 1780, 1970, 2840, 3152, 3560, 3940, 5680, 6319, 7120, 7880, 12638, 13987, 15760, 17533, 25276, 27974, 31595, 35066, 50552, 55948, 63190, 69935, 70132, 87665, 101104, 111896, 126380, 139870, 140264, 175330, 223792, 252760, 279740, 280528, 350660, 505520, 559480, 701320, 1118960, 1244843, 1402640, 2489686, 4979372, 6224215, 9958744, 12448430, 19917488, 24896860, 49793720, 99587440]

約数ペア:

[(1, 99587440), (2, 49793720), (4, 24896860), (5, 19917488), (8, 12448430), (10, 9958744), (16, 6224215), (20, 4979372), (40, 2489686), (71, 1402640), (80, 1244843), (89, 1118960), (142, 701320), (178, 559480), (197, 505520), (284, 350660), (355, 280528), (356, 279740), (394, 252760), (445, 223792), (568, 175330), (710, 140264), (712, 139870), (788, 126380), (890, 111896), (985, 101104), (1136, 87665), (1420, 70132), (1424, 69935), (1576, 63190), (1780, 55948), (1970, 50552), (2840, 35066), (3152, 31595), (3560, 27974), (3940, 25276), (5680, 17533), (6319, 15760), (7120, 13987), (7880, 12638)]