289554490

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{80209}}^1$

素因数の和:80254

約数の個数: 24

約数和(自身を含む): 550080180

約数和(自身を除く): 260525690

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 361, 722, 1805, 3610, 80209, 160418, 401045, 802090, 1523971, 3047942, 7619855, 15239710, 28955449, 57910898, 144777245, 289554490]

約数ペア:

[(1, 289554490), (2, 144777245), (5, 57910898), (10, 28955449), (19, 15239710), (38, 7619855), (95, 3047942), (190, 1523971), (361, 802090), (722, 401045), (1805, 160418), (3610, 80209)]