81864008

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{538579}}^1$

素因数の和:538604

約数の個数: 16

約数和(自身を含む): 161574000

約数和(自身を除く): 79709992

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 538579, 1077158, 2154316, 4308632, 10233001, 20466002, 40932004, 81864008]

約数ペア:

[(1, 81864008), (2, 40932004), (4, 20466002), (8, 10233001), (19, 4308632), (38, 2154316), (76, 1077158), (152, 538579)]