390868

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1$

素因数の和:199

約数の個数: 24

約数和(自身を含む): 744800

約数和(自身を除く): 353932

約数列:

[1, 2, 4, 19, 37, 38, 74, 76, 139, 148, 278, 556, 703, 1406, 2641, 2812, 5143, 5282, 10286, 10564, 20572, 97717, 195434, 390868]

約数ペア:

[(1, 390868), (2, 195434), (4, 97717), (19, 20572), (37, 10564), (38, 10286), (74, 5282), (76, 5143), (139, 2812), (148, 2641), (278, 1406), (556, 703)]