28888125

素因数分解:

$3^1\times 5^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:132

約数の個数: 80

約数和(自身を含む): 57581568

約数和(自身を除く): 28693443

約数列:

[1, 3, 5, 7, 15, 21, 25, 31, 35, 71, 75, 93, 105, 125, 155, 175, 213, 217, 355, 375, 465, 497, 525, 625, 651, 775, 875, 1065, 1085, 1491, 1775, 1875, 2201, 2325, 2485, 2625, 3255, 3875, 4375, 5325, 5425, 6603, 7455, 8875, 11005, 11625, 12425, 13125, 15407, 16275, 19375, 26625, 27125, 33015, 37275, 44375, 46221, 55025, 58125, 62125, 77035, 81375, 133125, 135625, 165075, 186375, 231105, 275125, 310625, 385175, 406875, 825375, 931875, 1155525, 1375625, 1925875, 4126875, 5777625, 9629375, 28888125]

約数ペア:

[(1, 28888125), (3, 9629375), (5, 5777625), (7, 4126875), (15, 1925875), (21, 1375625), (25, 1155525), (31, 931875), (35, 825375), (71, 406875), (75, 385175), (93, 310625), (105, 275125), (125, 231105), (155, 186375), (175, 165075), (213, 135625), (217, 133125), (355, 81375), (375, 77035), (465, 62125), (497, 58125), (525, 55025), (625, 46221), (651, 44375), (775, 37275), (875, 33015), (1065, 27125), (1085, 26625), (1491, 19375), (1775, 16275), (1875, 15407), (2201, 13125), (2325, 12425), (2485, 11625), (2625, 11005), (3255, 8875), (3875, 7455), (4375, 6603), (5325, 5425)]