28256865

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{163}}^1$

素因数の和:318

約数の個数: 64

約数和(自身を含む): 56426496

約数和(自身を除く): 28169631

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 127, 163, 195, 273, 381, 455, 489, 635, 815, 889, 1141, 1365, 1651, 1905, 2119, 2445, 2667, 3423, 4445, 4953, 5705, 6357, 8255, 10595, 11557, 13335, 14833, 17115, 20701, 24765, 31785, 34671, 44499, 57785, 62103, 74165, 103505, 144907, 173355, 222495, 269113, 310515, 434721, 724535, 807339, 1345565, 1883791, 2173605, 4036695, 5651373, 9418955, 28256865]

約数ペア:

[(1, 28256865), (3, 9418955), (5, 5651373), (7, 4036695), (13, 2173605), (15, 1883791), (21, 1345565), (35, 807339), (39, 724535), (65, 434721), (91, 310515), (105, 269113), (127, 222495), (163, 173355), (195, 144907), (273, 103505), (381, 74165), (455, 62103), (489, 57785), (635, 44499), (815, 34671), (889, 31785), (1141, 24765), (1365, 20701), (1651, 17115), (1905, 14833), (2119, 13335), (2445, 11557), (2667, 10595), (3423, 8255), (4445, 6357), (4953, 5705)]