131121860

素因数分解:

$2^2\times 5^1\times {\mathrm{419}}^1\times {\mathrm{15647}}^1$

素因数の和:16075

約数の個数: 24

約数和(自身を含む): 276030720

約数和(自身を除く): 144908860

約数列:

[1, 2, 4, 5, 10, 20, 419, 838, 1676, 2095, 4190, 8380, 15647, 31294, 62588, 78235, 156470, 312940, 6556093, 13112186, 26224372, 32780465, 65560930, 131121860]

約数ペア:

[(1, 131121860), (2, 65560930), (4, 32780465), (5, 26224372), (10, 13112186), (20, 6556093), (419, 312940), (838, 156470), (1676, 78235), (2095, 62588), (4190, 31294), (8380, 15647)]