201521860

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{438091}}^1$

素因数の和:438123

約数の個数: 24

約数和(自身を含む): 441596736

約数和(自身を除く): 240074876

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 438091, 876182, 1752364, 2190455, 4380910, 8761820, 10076093, 20152186, 40304372, 50380465, 100760930, 201521860]

約数ペア:

[(1, 201521860), (2, 100760930), (4, 50380465), (5, 40304372), (10, 20152186), (20, 10076093), (23, 8761820), (46, 4380910), (92, 2190455), (115, 1752364), (230, 876182), (460, 438091)]