31297028

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{661}}^1$

素因数の和:780

約数の個数: 48

約数和(自身を含む): 66729600

約数和(自身を除く): 35432572

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 89, 133, 178, 266, 356, 532, 623, 661, 1246, 1322, 1691, 2492, 2644, 3382, 4627, 6764, 9254, 11837, 12559, 18508, 23674, 25118, 47348, 50236, 58829, 87913, 117658, 175826, 235316, 351652, 411803, 823606, 1117751, 1647212, 2235502, 4471004, 7824257, 15648514, 31297028]

約数ペア:

[(1, 31297028), (2, 15648514), (4, 7824257), (7, 4471004), (14, 2235502), (19, 1647212), (28, 1117751), (38, 823606), (76, 411803), (89, 351652), (133, 235316), (178, 175826), (266, 117658), (356, 87913), (532, 58829), (623, 50236), (661, 47348), (1246, 25118), (1322, 23674), (1691, 18508), (2492, 12559), (2644, 11837), (3382, 9254), (4627, 6764)]