15725745

素因数分解:

$3^5\times 5^1\times 7^1\times {\mathrm{43}}^2$

素因数の和:113

約数の個数: 72

約数和(自身を含む): 33074496

約数和(自身を除く): 17348751

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 43, 45, 63, 81, 105, 129, 135, 189, 215, 243, 301, 315, 387, 405, 567, 645, 903, 945, 1161, 1215, 1505, 1701, 1849, 1935, 2709, 2835, 3483, 4515, 5547, 5805, 8127, 8505, 9245, 10449, 12943, 13545, 16641, 17415, 24381, 27735, 38829, 40635, 49923, 52245, 64715, 73143, 83205, 116487, 121905, 149769, 194145, 249615, 349461, 365715, 449307, 582435, 748845, 1048383, 1747305, 2246535, 3145149, 5241915, 15725745]

約数ペア:

[(1, 15725745), (3, 5241915), (5, 3145149), (7, 2246535), (9, 1747305), (15, 1048383), (21, 748845), (27, 582435), (35, 449307), (43, 365715), (45, 349461), (63, 249615), (81, 194145), (105, 149769), (129, 121905), (135, 116487), (189, 83205), (215, 73143), (243, 64715), (301, 52245), (315, 49923), (387, 40635), (405, 38829), (567, 27735), (645, 24381), (903, 17415), (945, 16641), (1161, 13545), (1215, 12943), (1505, 10449), (1701, 9245), (1849, 8505), (1935, 8127), (2709, 5805), (2835, 5547), (3483, 4515)]