18243920

素因数分解:

$2^4\times 5^1\times {\mathrm{228049}}^1$

素因数の和:228062

約数の個数: 20

約数和(自身を含む): 42417300

約数和(自身を除く): 24173380

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 228049, 456098, 912196, 1140245, 1824392, 2280490, 3648784, 4560980, 9121960, 18243920]

約数ペア:

[(1, 18243920), (2, 9121960), (4, 4560980), (5, 3648784), (8, 2280490), (10, 1824392), (16, 1140245), (20, 912196), (40, 456098), (80, 228049)]