31732220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{127}}^1$

素因数の和:211

約数の個数: 72

約数和(自身を含む): 74737152

約数和(自身を除く): 43004932

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 127, 130, 155, 254, 260, 310, 403, 508, 620, 635, 806, 961, 1270, 1612, 1651, 1922, 2015, 2540, 3302, 3844, 3937, 4030, 4805, 6604, 7874, 8060, 8255, 9610, 12493, 15748, 16510, 19220, 19685, 24986, 33020, 39370, 49972, 51181, 62465, 78740, 102362, 122047, 124930, 204724, 244094, 249860, 255905, 488188, 511810, 610235, 1023620, 1220470, 1586611, 2440940, 3173222, 6346444, 7933055, 15866110, 31732220]

約数ペア:

[(1, 31732220), (2, 15866110), (4, 7933055), (5, 6346444), (10, 3173222), (13, 2440940), (20, 1586611), (26, 1220470), (31, 1023620), (52, 610235), (62, 511810), (65, 488188), (124, 255905), (127, 249860), (130, 244094), (155, 204724), (254, 124930), (260, 122047), (310, 102362), (403, 78740), (508, 62465), (620, 51181), (635, 49972), (806, 39370), (961, 33020), (1270, 24986), (1612, 19685), (1651, 19220), (1922, 16510), (2015, 15748), (2540, 12493), (3302, 9610), (3844, 8255), (3937, 8060), (4030, 7874), (4805, 6604)]