18720190

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{45659}}^1$

素因数の和:45707

約数の個数: 16

約数和(自身を含む): 34518960

約数和(自身を除く): 15798770

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 45659, 91318, 228295, 456590, 1872019, 3744038, 9360095, 18720190]

約数ペア:

[(1, 18720190), (2, 9360095), (5, 3744038), (10, 1872019), (41, 456590), (82, 228295), (205, 91318), (410, 45659)]