1990558

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{397}}^1$

素因数の和:531

約数の個数: 16

約数和(自身を含む): 3152160

約数和(自身を除く): 1161602

約数列:

[1, 2, 23, 46, 109, 218, 397, 794, 2507, 5014, 9131, 18262, 43273, 86546, 995279, 1990558]

約数ペア:

[(1, 1990558), (2, 995279), (23, 86546), (46, 43273), (109, 18262), (218, 9131), (397, 5014), (794, 2507)]