28106925

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:219

約数の個数: 96

約数和(自身を含む): 60186624

約数和(自身を除く): 32079699

約数列:

[1, 3, 5, 7, 11, 15, 21, 25, 31, 33, 35, 55, 75, 77, 93, 105, 155, 157, 165, 175, 217, 231, 275, 341, 385, 465, 471, 525, 651, 775, 785, 825, 1023, 1085, 1099, 1155, 1705, 1727, 1925, 2325, 2355, 2387, 3255, 3297, 3925, 4867, 5115, 5181, 5425, 5495, 5775, 7161, 8525, 8635, 11775, 11935, 12089, 14601, 16275, 16485, 24335, 25575, 25905, 27475, 34069, 35805, 36267, 43175, 53537, 59675, 60445, 73005, 82425, 102207, 121675, 129525, 160611, 170345, 179025, 181335, 267685, 302225, 365025, 374759, 511035, 803055, 851725, 906675, 1124277, 1338425, 1873795, 2555175, 4015275, 5621385, 9368975, 28106925]

約数ペア:

[(1, 28106925), (3, 9368975), (5, 5621385), (7, 4015275), (11, 2555175), (15, 1873795), (21, 1338425), (25, 1124277), (31, 906675), (33, 851725), (35, 803055), (55, 511035), (75, 374759), (77, 365025), (93, 302225), (105, 267685), (155, 181335), (157, 179025), (165, 170345), (175, 160611), (217, 129525), (231, 121675), (275, 102207), (341, 82425), (385, 73005), (465, 60445), (471, 59675), (525, 53537), (651, 43175), (775, 36267), (785, 35805), (825, 34069), (1023, 27475), (1085, 25905), (1099, 25575), (1155, 24335), (1705, 16485), (1727, 16275), (1925, 14601), (2325, 12089), (2355, 11935), (2387, 11775), (3255, 8635), (3297, 8525), (3925, 7161), (4867, 5775), (5115, 5495), (5181, 5425)]