20609725

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{491}}^1$

素因数の和:597

約数の個数: 24

約数和(自身を含む): 27087552

約数和(自身を除く): 6477827

約数列:

[1, 5, 23, 25, 73, 115, 365, 491, 575, 1679, 1825, 2455, 8395, 11293, 12275, 35843, 41975, 56465, 179215, 282325, 824389, 896075, 4121945, 20609725]

約数ペア:

[(1, 20609725), (5, 4121945), (23, 896075), (25, 824389), (73, 282325), (115, 179215), (365, 56465), (491, 41975), (575, 35843), (1679, 12275), (1825, 11293), (2455, 8395)]