68987781

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{683}}^1$

素因数の和:767

約数の個数: 40

約数和(自身を含む): 109248480

約数和(自身を除く): 40260699

約数列:

[1, 3, 9, 27, 29, 43, 81, 87, 129, 261, 387, 683, 783, 1161, 1247, 2049, 2349, 3483, 3741, 6147, 11223, 18441, 19807, 29369, 33669, 55323, 59421, 88107, 101007, 178263, 264321, 534789, 792963, 851701, 1604367, 2378889, 2555103, 7665309, 22995927, 68987781]

約数ペア:

[(1, 68987781), (3, 22995927), (9, 7665309), (27, 2555103), (29, 2378889), (43, 1604367), (81, 851701), (87, 792963), (129, 534789), (261, 264321), (387, 178263), (683, 101007), (783, 88107), (1161, 59421), (1247, 55323), (2049, 33669), (2349, 29369), (3483, 19807), (3741, 18441), (6147, 11223)]