19633360

素因数分解:

$2^4\times 5^1\times {\mathrm{245417}}^1$

素因数の和:245430

約数の個数: 20

約数和(自身を含む): 45647748

約数和(自身を除く): 26014388

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 245417, 490834, 981668, 1227085, 1963336, 2454170, 3926672, 4908340, 9816680, 19633360]

約数ペア:

[(1, 19633360), (2, 9816680), (4, 4908340), (5, 3926672), (8, 2454170), (10, 1963336), (16, 1227085), (20, 981668), (40, 490834), (80, 245417)]