166648640

素因数分解:

$2^6\times 5^1\times {\mathrm{421}}^1\times {\mathrm{1237}}^1$

素因数の和:1675

約数の個数: 56

約数和(自身を含む): 398096232

約数和(自身を除く): 231447592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 421, 842, 1237, 1684, 2105, 2474, 3368, 4210, 4948, 6185, 6736, 8420, 9896, 12370, 13472, 16840, 19792, 24740, 26944, 33680, 39584, 49480, 67360, 79168, 98960, 134720, 197920, 395840, 520777, 1041554, 2083108, 2603885, 4166216, 5207770, 8332432, 10415540, 16664864, 20831080, 33329728, 41662160, 83324320, 166648640]

約数ペア:

[(1, 166648640), (2, 83324320), (4, 41662160), (5, 33329728), (8, 20831080), (10, 16664864), (16, 10415540), (20, 8332432), (32, 5207770), (40, 4166216), (64, 2603885), (80, 2083108), (160, 1041554), (320, 520777), (421, 395840), (842, 197920), (1237, 134720), (1684, 98960), (2105, 79168), (2474, 67360), (3368, 49480), (4210, 39584), (4948, 33680), (6185, 26944), (6736, 24740), (8420, 19792), (9896, 16840), (12370, 13472)]