31026885

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{647}}^1$

素因数の和:817

約数の個数: 32

約数和(自身を含む): 52254720

約数和(自身を除く): 21227835

約数列:

[1, 3, 5, 15, 23, 69, 115, 139, 345, 417, 647, 695, 1941, 2085, 3197, 3235, 9591, 9705, 14881, 15985, 44643, 47955, 74405, 89933, 223215, 269799, 449665, 1348995, 2068459, 6205377, 10342295, 31026885]

約数ペア:

[(1, 31026885), (3, 10342295), (5, 6205377), (15, 2068459), (23, 1348995), (69, 449665), (115, 269799), (139, 223215), (345, 89933), (417, 74405), (647, 47955), (695, 44643), (1941, 15985), (2085, 14881), (3197, 9705), (3235, 9591)]