8951680

素因数分解:

$2^7\times 5^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1$

素因数の和:287

約数の個数: 64

約数和(自身を含む): 21811680

約数和(自身を除く): 12860000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 128, 142, 160, 197, 284, 320, 355, 394, 568, 640, 710, 788, 985, 1136, 1420, 1576, 1970, 2272, 2840, 3152, 3940, 4544, 5680, 6304, 7880, 9088, 11360, 12608, 13987, 15760, 22720, 25216, 27974, 31520, 45440, 55948, 63040, 69935, 111896, 126080, 139870, 223792, 279740, 447584, 559480, 895168, 1118960, 1790336, 2237920, 4475840, 8951680]

約数ペア:

[(1, 8951680), (2, 4475840), (4, 2237920), (5, 1790336), (8, 1118960), (10, 895168), (16, 559480), (20, 447584), (32, 279740), (40, 223792), (64, 139870), (71, 126080), (80, 111896), (128, 69935), (142, 63040), (160, 55948), (197, 45440), (284, 31520), (320, 27974), (355, 25216), (394, 22720), (568, 15760), (640, 13987), (710, 12608), (788, 11360), (985, 9088), (1136, 7880), (1420, 6304), (1576, 5680), (1970, 4544), (2272, 3940), (2840, 3152)]