131031888

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{209987}}^1$

素因数の和:210011

約数の個数: 40

約数和(自身を含む): 364539168

約数和(自身を除く): 233507280

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 208, 312, 624, 209987, 419974, 629961, 839948, 1259922, 1679896, 2519844, 2729831, 3359792, 5039688, 5459662, 8189493, 10079376, 10919324, 16378986, 21838648, 32757972, 43677296, 65515944, 131031888]

約数ペア:

[(1, 131031888), (2, 65515944), (3, 43677296), (4, 32757972), (6, 21838648), (8, 16378986), (12, 10919324), (13, 10079376), (16, 8189493), (24, 5459662), (26, 5039688), (39, 3359792), (48, 2729831), (52, 2519844), (78, 1679896), (104, 1259922), (156, 839948), (208, 629961), (312, 419974), (624, 209987)]