81294160

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{677}}^1$

素因数の和:788

約数の個数: 80

約数和(自身を含む): 201772800

約数和(自身を除く): 120478640

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 79, 80, 95, 152, 158, 190, 304, 316, 380, 395, 632, 677, 760, 790, 1264, 1354, 1501, 1520, 1580, 2708, 3002, 3160, 3385, 5416, 6004, 6320, 6770, 7505, 10832, 12008, 12863, 13540, 15010, 24016, 25726, 27080, 30020, 51452, 53483, 54160, 60040, 64315, 102904, 106966, 120080, 128630, 205808, 213932, 257260, 267415, 427864, 514520, 534830, 855728, 1016177, 1029040, 1069660, 2032354, 2139320, 4064708, 4278640, 5080885, 8129416, 10161770, 16258832, 20323540, 40647080, 81294160]

約数ペア:

[(1, 81294160), (2, 40647080), (4, 20323540), (5, 16258832), (8, 10161770), (10, 8129416), (16, 5080885), (19, 4278640), (20, 4064708), (38, 2139320), (40, 2032354), (76, 1069660), (79, 1029040), (80, 1016177), (95, 855728), (152, 534830), (158, 514520), (190, 427864), (304, 267415), (316, 257260), (380, 213932), (395, 205808), (632, 128630), (677, 120080), (760, 106966), (790, 102904), (1264, 64315), (1354, 60040), (1501, 54160), (1520, 53483), (1580, 51452), (2708, 30020), (3002, 27080), (3160, 25726), (3385, 24016), (5416, 15010), (6004, 13540), (6320, 12863), (6770, 12008), (7505, 10832)]