31115984

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{823}}^1$

素因数の和:987

約数の個数: 40

約数和(自身を含む): 64370880

約数和(自身を除く): 33254896

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 139, 272, 278, 556, 823, 1112, 1646, 2224, 2363, 3292, 4726, 6584, 9452, 13168, 13991, 18904, 27982, 37808, 55964, 111928, 114397, 223856, 228794, 457588, 915176, 1830352, 1944749, 3889498, 7778996, 15557992, 31115984]

約数ペア:

[(1, 31115984), (2, 15557992), (4, 7778996), (8, 3889498), (16, 1944749), (17, 1830352), (34, 915176), (68, 457588), (136, 228794), (139, 223856), (272, 114397), (278, 111928), (556, 55964), (823, 37808), (1112, 27982), (1646, 18904), (2224, 13991), (2363, 13168), (3292, 9452), (4726, 6584)]