87294640

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{191}}^1\times {\mathrm{197}}^1$

素因数の和:430

約数の個数: 80

約数和(自身を含む): 212129280

約数和(自身を除く): 124834640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 191, 197, 232, 290, 382, 394, 464, 580, 764, 788, 955, 985, 1160, 1528, 1576, 1910, 1970, 2320, 3056, 3152, 3820, 3940, 5539, 5713, 7640, 7880, 11078, 11426, 15280, 15760, 22156, 22852, 27695, 28565, 37627, 44312, 45704, 55390, 57130, 75254, 88624, 91408, 110780, 114260, 150508, 188135, 221560, 228520, 301016, 376270, 443120, 457040, 602032, 752540, 1091183, 1505080, 2182366, 3010160, 4364732, 5455915, 8729464, 10911830, 17458928, 21823660, 43647320, 87294640]

約数ペア:

[(1, 87294640), (2, 43647320), (4, 21823660), (5, 17458928), (8, 10911830), (10, 8729464), (16, 5455915), (20, 4364732), (29, 3010160), (40, 2182366), (58, 1505080), (80, 1091183), (116, 752540), (145, 602032), (191, 457040), (197, 443120), (232, 376270), (290, 301016), (382, 228520), (394, 221560), (464, 188135), (580, 150508), (764, 114260), (788, 110780), (955, 91408), (985, 88624), (1160, 75254), (1528, 57130), (1576, 55390), (1910, 45704), (1970, 44312), (2320, 37627), (3056, 28565), (3152, 27695), (3820, 22852), (3940, 22156), (5539, 15760), (5713, 15280), (7640, 11426), (7880, 11078)]