31680225

素因数分解:

$3^2\times 5^2\times {\mathrm{103}}^1\times {\mathrm{1367}}^1$

素因数の和:1486

約数の個数: 36

約数和(自身を含む): 57335616

約数和(自身を除く): 25655391

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 103, 225, 309, 515, 927, 1367, 1545, 2575, 4101, 4635, 6835, 7725, 12303, 20505, 23175, 34175, 61515, 102525, 140801, 307575, 422403, 704005, 1267209, 2112015, 3520025, 6336045, 10560075, 31680225]

約数ペア:

[(1, 31680225), (3, 10560075), (5, 6336045), (9, 3520025), (15, 2112015), (25, 1267209), (45, 704005), (75, 422403), (103, 307575), (225, 140801), (309, 102525), (515, 61515), (927, 34175), (1367, 23175), (1545, 20505), (2575, 12303), (4101, 7725), (4635, 6835)]