79991530

素因数分解:

$2^1\times 5^1\times {\mathrm{397}}^1\times {\mathrm{20149}}^1$

素因数の和:20553

約数の個数: 16

約数和(自身を含む): 144354600

約数和(自身を除く): 64363070

約数列:

[1, 2, 5, 10, 397, 794, 1985, 3970, 20149, 40298, 100745, 201490, 7999153, 15998306, 39995765, 79991530]

約数ペア:

[(1, 79991530), (2, 39995765), (5, 15998306), (10, 7999153), (397, 201490), (794, 100745), (1985, 40298), (3970, 20149)]