28390970

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{123439}}^1$

素因数の和:123469

約数の個数: 16

約数和(自身を含む): 53326080

約数和(自身を除く): 24935110

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 123439, 246878, 617195, 1234390, 2839097, 5678194, 14195485, 28390970]

約数ペア:

[(1, 28390970), (2, 14195485), (5, 5678194), (10, 2839097), (23, 1234390), (46, 617195), (115, 246878), (230, 123439)]