20864450

素因数分解:

$2^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{18143}}^1$

素因数の和:18178

約数の個数: 24

約数和(自身を含む): 40497408

約数和(自身を除く): 19632958

約数列:

[1, 2, 5, 10, 23, 25, 46, 50, 115, 230, 575, 1150, 18143, 36286, 90715, 181430, 417289, 453575, 834578, 907150, 2086445, 4172890, 10432225, 20864450]

約数ペア:

[(1, 20864450), (2, 10432225), (5, 4172890), (10, 2086445), (23, 907150), (25, 834578), (46, 453575), (50, 417289), (115, 181430), (230, 90715), (575, 36286), (1150, 18143)]