28774805

素因数分解:

$5^1\times {\mathrm{131}}^1\times {\mathrm{197}}^1\times {\mathrm{223}}^1$

素因数の和:556

約数の個数: 16

約数和(自身を含む): 35126784

約数和(自身を除く): 6351979

約数列:

[1, 5, 131, 197, 223, 655, 985, 1115, 25807, 29213, 43931, 129035, 146065, 219655, 5754961, 28774805]

約数ペア:

[(1, 28774805), (5, 5754961), (131, 219655), (197, 146065), (223, 129035), (655, 43931), (985, 29213), (1115, 25807)]