81120266

素因数分解:

$2^1\times {\mathrm{197}}^1\times {\mathrm{227}}^1\times {\mathrm{907}}^1$

素因数の和:1333

約数の個数: 16

約数和(自身を含む): 122972256

約数和(自身を除く): 41851990

約数列:

[1, 2, 197, 227, 394, 454, 907, 1814, 44719, 89438, 178679, 205889, 357358, 411778, 40560133, 81120266]

約数ペア:

[(1, 81120266), (2, 40560133), (197, 411778), (227, 357358), (394, 205889), (454, 178679), (907, 89438), (1814, 44719)]