68541680

素因数分解:

$2^4\times 5^1\times {\mathrm{383}}^1\times {\mathrm{2237}}^1$

素因数の和:2633

約数の個数: 40

約数和(自身を含む): 159846912

約数和(自身を除く): 91305232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 383, 766, 1532, 1915, 2237, 3064, 3830, 4474, 6128, 7660, 8948, 11185, 15320, 17896, 22370, 30640, 35792, 44740, 89480, 178960, 856771, 1713542, 3427084, 4283855, 6854168, 8567710, 13708336, 17135420, 34270840, 68541680]

約数ペア:

[(1, 68541680), (2, 34270840), (4, 17135420), (5, 13708336), (8, 8567710), (10, 6854168), (16, 4283855), (20, 3427084), (40, 1713542), (80, 856771), (383, 178960), (766, 89480), (1532, 44740), (1915, 35792), (2237, 30640), (3064, 22370), (3830, 17896), (4474, 15320), (6128, 11185), (7660, 8948)]