65477680

素因数分解:

$2^4\times 5^1\times {\mathrm{383}}^1\times {\mathrm{2137}}^1$

素因数の和:2533

約数の個数: 40

約数和(自身を含む): 152704512

約数和(自身を除く): 87226832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 383, 766, 1532, 1915, 2137, 3064, 3830, 4274, 6128, 7660, 8548, 10685, 15320, 17096, 21370, 30640, 34192, 42740, 85480, 170960, 818471, 1636942, 3273884, 4092355, 6547768, 8184710, 13095536, 16369420, 32738840, 65477680]

約数ペア:

[(1, 65477680), (2, 32738840), (4, 16369420), (5, 13095536), (8, 8184710), (10, 6547768), (16, 4092355), (20, 3273884), (40, 1636942), (80, 818471), (383, 170960), (766, 85480), (1532, 42740), (1915, 34192), (2137, 30640), (3064, 21370), (3830, 17096), (4274, 15320), (6128, 10685), (7660, 8548)]