68728025

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 96422400

約数和(自身を除く): 27694375

約数列:

[1, 5, 17, 23, 25, 79, 85, 89, 115, 391, 395, 425, 445, 575, 1343, 1513, 1817, 1955, 1975, 2047, 2225, 6715, 7031, 7565, 9085, 9775, 10235, 30889, 33575, 34799, 35155, 37825, 45425, 51175, 119527, 154445, 161713, 173995, 175775, 597635, 772225, 808565, 869975, 2749121, 2988175, 4042825, 13745605, 68728025]

約数ペア:

[(1, 68728025), (5, 13745605), (17, 4042825), (23, 2988175), (25, 2749121), (79, 869975), (85, 808565), (89, 772225), (115, 597635), (391, 175775), (395, 173995), (425, 161713), (445, 154445), (575, 119527), (1343, 51175), (1513, 45425), (1817, 37825), (1955, 35155), (1975, 34799), (2047, 33575), (2225, 30889), (6715, 10235), (7031, 9775), (7565, 9085)]