8121320

素因数分解:

$2^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{1063}}^1$

素因数の和:1265

約数の個数: 32

約数和(自身を含む): 18385920

約数和(自身を除く): 10264600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 191, 382, 764, 955, 1063, 1528, 1910, 2126, 3820, 4252, 5315, 7640, 8504, 10630, 21260, 42520, 203033, 406066, 812132, 1015165, 1624264, 2030330, 4060660, 8121320]

約数ペア:

[(1, 8121320), (2, 4060660), (4, 2030330), (5, 1624264), (8, 1015165), (10, 812132), (20, 406066), (40, 203033), (191, 42520), (382, 21260), (764, 10630), (955, 8504), (1063, 7640), (1528, 5315), (1910, 4252), (2126, 3820)]