287466140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1105639}}^1$

素因数の和:1105661

約数の個数: 24

約数和(自身を含む): 650116320

約数和(自身を除く): 362650180

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1105639, 2211278, 4422556, 5528195, 11056390, 14373307, 22112780, 28746614, 57493228, 71866535, 143733070, 287466140]

約数ペア:

[(1, 287466140), (2, 143733070), (4, 71866535), (5, 57493228), (10, 28746614), (13, 22112780), (20, 14373307), (26, 11056390), (52, 5528195), (65, 4422556), (130, 2211278), (260, 1105639)]