13203920

素因数分解:

$2^4\times 5^1\times {\mathrm{165049}}^1$

素因数の和:165062

約数の個数: 20

約数和(自身を含む): 30699300

約数和(自身を除く): 17495380

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 165049, 330098, 660196, 825245, 1320392, 1650490, 2640784, 3300980, 6601960, 13203920]

約数ペア:

[(1, 13203920), (2, 6601960), (4, 3300980), (5, 2640784), (8, 1650490), (10, 1320392), (16, 825245), (20, 660196), (40, 330098), (80, 165049)]