87298729

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1$

素因数の和:289

約数の個数: 32

約数和(自身を含む): 107838720

約数和(自身を除く): 20539991

約数列:

[1, 7, 29, 43, 73, 137, 203, 301, 511, 959, 1247, 2117, 3139, 3973, 5891, 8729, 10001, 14819, 21973, 27811, 41237, 70007, 91031, 170839, 290029, 430043, 637217, 1195873, 2030203, 3010301, 12471247, 87298729]

約数ペア:

[(1, 87298729), (7, 12471247), (29, 3010301), (43, 2030203), (73, 1195873), (137, 637217), (203, 430043), (301, 290029), (511, 170839), (959, 91031), (1247, 70007), (2117, 41237), (3139, 27811), (3973, 21973), (5891, 14819), (8729, 10001)]