28286775

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^2\times {\mathrm{1039}}^1$

素因数の和:1077

約数の個数: 54

約数和(自身を含む): 55742960

約数和(自身を除く): 27456185

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 75, 99, 121, 165, 225, 275, 363, 495, 605, 825, 1039, 1089, 1815, 2475, 3025, 3117, 5195, 5445, 9075, 9351, 11429, 15585, 25975, 27225, 34287, 46755, 57145, 77925, 102861, 125719, 171435, 233775, 285725, 377157, 514305, 628595, 857175, 1131471, 1885785, 2571525, 3142975, 5657355, 9428925, 28286775]

約数ペア:

[(1, 28286775), (3, 9428925), (5, 5657355), (9, 3142975), (11, 2571525), (15, 1885785), (25, 1131471), (33, 857175), (45, 628595), (55, 514305), (75, 377157), (99, 285725), (121, 233775), (165, 171435), (225, 125719), (275, 102861), (363, 77925), (495, 57145), (605, 46755), (825, 34287), (1039, 27225), (1089, 25975), (1815, 15585), (2475, 11429), (3025, 9351), (3117, 9075), (5195, 5445)]