19770160

素因数分解:

$2^4\times 5^1\times {\mathrm{421}}^1\times {\mathrm{587}}^1$

素因数の和:1021

約数の個数: 40

約数和(自身を含む): 46153296

約数和(自身を除く): 26383136

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 421, 587, 842, 1174, 1684, 2105, 2348, 2935, 3368, 4210, 4696, 5870, 6736, 8420, 9392, 11740, 16840, 23480, 33680, 46960, 247127, 494254, 988508, 1235635, 1977016, 2471270, 3954032, 4942540, 9885080, 19770160]

約数ペア:

[(1, 19770160), (2, 9885080), (4, 4942540), (5, 3954032), (8, 2471270), (10, 1977016), (16, 1235635), (20, 988508), (40, 494254), (80, 247127), (421, 46960), (587, 33680), (842, 23480), (1174, 16840), (1684, 11740), (2105, 9392), (2348, 8420), (2935, 6736), (3368, 5870), (4210, 4696)]