20408935

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{1723}}^1$

素因数の和:1854

約数の個数: 16

約数和(自身を含む): 25818624

約数和(自身を除く): 5409689

約数列:

[1, 5, 23, 103, 115, 515, 1723, 2369, 8615, 11845, 39629, 177469, 198145, 887345, 4081787, 20408935]

約数ペア:

[(1, 20408935), (5, 4081787), (23, 887345), (103, 198145), (115, 177469), (515, 39629), (1723, 11845), (2369, 8615)]