31387870

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1\times {\mathrm{571}}^1$

素因数の和:840

約数の個数: 32

約数和(自身を含む): 59304960

約数和(自身を除く): 27917090

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 239, 478, 571, 1142, 1195, 2390, 2855, 5497, 5710, 10994, 13133, 26266, 27485, 54970, 65665, 131330, 136469, 272938, 682345, 1364690, 3138787, 6277574, 15693935, 31387870]

約数ペア:

[(1, 31387870), (2, 15693935), (5, 6277574), (10, 3138787), (23, 1364690), (46, 682345), (115, 272938), (230, 136469), (239, 131330), (478, 65665), (571, 54970), (1142, 27485), (1195, 26266), (2390, 13133), (2855, 10994), (5497, 5710)]