81429745

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{22279}}^1$

素因数の和:22344

約数の個数: 16

約数和(自身を含む): 105874560

約数和(自身を除く): 24444815

約数列:

[1, 5, 17, 43, 85, 215, 731, 3655, 22279, 111395, 378743, 957997, 1893715, 4789985, 16285949, 81429745]

約数ペア:

[(1, 81429745), (5, 16285949), (17, 4789985), (43, 1893715), (85, 957997), (215, 378743), (731, 111395), (3655, 22279)]