799999004

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1\times {\mathrm{3671}}^1$

素因数の和:3906

約数の個数: 48

約数和(自身を含む): 1646701056

約数和(自身を除く): 846702052

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 181, 301, 362, 602, 724, 1204, 1267, 2534, 3671, 5068, 7342, 7783, 14684, 15566, 25697, 31132, 51394, 54481, 102788, 108962, 157853, 217924, 315706, 631412, 664451, 1104971, 1328902, 2209942, 2657804, 4419884, 4651157, 9302314, 18604628, 28571393, 57142786, 114285572, 199999751, 399999502, 799999004]

約数ペア:

[(1, 799999004), (2, 399999502), (4, 199999751), (7, 114285572), (14, 57142786), (28, 28571393), (43, 18604628), (86, 9302314), (172, 4651157), (181, 4419884), (301, 2657804), (362, 2209942), (602, 1328902), (724, 1104971), (1204, 664451), (1267, 631412), (2534, 315706), (3671, 217924), (5068, 157853), (7342, 108962), (7783, 102788), (14684, 54481), (15566, 51394), (25697, 31132)]