668408

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{6427}}^1$

素因数の和:6446

約数の個数: 16

約数和(自身を含む): 1349880

約数和(自身を除く): 681472

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 6427, 12854, 25708, 51416, 83551, 167102, 334204, 668408]

約数ペア:

[(1, 668408), (2, 334204), (4, 167102), (8, 83551), (13, 51416), (26, 25708), (52, 12854), (104, 6427)]