131011880

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{31799}}^1$

素因数の和:31913

約数の個数: 32

約数和(自身を含む): 297648000

約数和(自身を除く): 166636120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 31799, 63598, 127196, 158995, 254392, 317990, 635980, 1271960, 3275297, 6550594, 13101188, 16376485, 26202376, 32752970, 65505940, 131011880]

約数ペア:

[(1, 131011880), (2, 65505940), (4, 32752970), (5, 26202376), (8, 16376485), (10, 13101188), (20, 6550594), (40, 3275297), (103, 1271960), (206, 635980), (412, 317990), (515, 254392), (824, 158995), (1030, 127196), (2060, 63598), (4120, 31799)]