31712225

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1$

素因数の和:170

約数の個数: 48

約数和(自身を含む): 44997120

約数和(自身を除く): 13284895

約数列:

[1, 5, 17, 25, 29, 31, 83, 85, 145, 155, 415, 425, 493, 527, 725, 775, 899, 1411, 2075, 2407, 2465, 2573, 2635, 4495, 7055, 12035, 12325, 12865, 13175, 15283, 22475, 35275, 40919, 43741, 60175, 64325, 74617, 76415, 204595, 218705, 373085, 382075, 1022975, 1093525, 1268489, 1865425, 6342445, 31712225]

約数ペア:

[(1, 31712225), (5, 6342445), (17, 1865425), (25, 1268489), (29, 1093525), (31, 1022975), (83, 382075), (85, 373085), (145, 218705), (155, 204595), (415, 76415), (425, 74617), (493, 64325), (527, 60175), (725, 43741), (775, 40919), (899, 35275), (1411, 22475), (2075, 15283), (2407, 13175), (2465, 12865), (2573, 12325), (2635, 12035), (4495, 7055)]