20217531790

素因数分解:

$2^1\times 5^1\times {\mathrm{1579}}^1\times {\mathrm{1280401}}^1$

素因数の和:1281987

約数の個数: 16

約数和(自身を含む): 36414632880

約数和(自身を除く): 16197101090

約数列:

[1, 2, 5, 10, 1579, 3158, 7895, 15790, 1280401, 2560802, 6402005, 12804010, 2021753179, 4043506358, 10108765895, 20217531790]

約数ペア:

[(1, 20217531790), (2, 10108765895), (5, 4043506358), (10, 2021753179), (1579, 12804010), (3158, 6402005), (7895, 2560802), (15790, 1280401)]