81317085

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{907}}^1$

素因数の和:1097

約数の個数: 32

約数和(自身を含む): 134238720

約数和(自身を除く): 52921635

約数列:

[1, 3, 5, 15, 43, 129, 139, 215, 417, 645, 695, 907, 2085, 2721, 4535, 5977, 13605, 17931, 29885, 39001, 89655, 117003, 126073, 195005, 378219, 585015, 630365, 1891095, 5421139, 16263417, 27105695, 81317085]

約数ペア:

[(1, 81317085), (3, 27105695), (5, 16263417), (15, 5421139), (43, 1891095), (129, 630365), (139, 585015), (215, 378219), (417, 195005), (645, 126073), (695, 117003), (907, 89655), (2085, 39001), (2721, 29885), (4535, 17931), (5977, 13605)]