28667625

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{67}}^1\times {\mathrm{163}}^1$

素因数の和:255

約数の個数: 64

約数和(自身を含む): 55670784

約数和(自身を除く): 27003159

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 67, 75, 105, 125, 163, 175, 201, 335, 375, 469, 489, 525, 815, 875, 1005, 1141, 1407, 1675, 2345, 2445, 2625, 3423, 4075, 5025, 5705, 7035, 8375, 10921, 11725, 12225, 17115, 20375, 25125, 28525, 32763, 35175, 54605, 58625, 61125, 76447, 85575, 142625, 163815, 175875, 229341, 273025, 382235, 427875, 819075, 1146705, 1365125, 1911175, 4095375, 5733525, 9555875, 28667625]

約数ペア:

[(1, 28667625), (3, 9555875), (5, 5733525), (7, 4095375), (15, 1911175), (21, 1365125), (25, 1146705), (35, 819075), (67, 427875), (75, 382235), (105, 273025), (125, 229341), (163, 175875), (175, 163815), (201, 142625), (335, 85575), (375, 76447), (469, 61125), (489, 58625), (525, 54605), (815, 35175), (875, 32763), (1005, 28525), (1141, 25125), (1407, 20375), (1675, 17115), (2345, 12225), (2445, 11725), (2625, 10921), (3423, 8375), (4075, 7035), (5025, 5705)]