28820625

素因数分解:

$3^1\times 5^4\times {\mathrm{19}}^1\times {\mathrm{809}}^1$

素因数の和:851

約数の個数: 40

約数和(自身を含む): 50608800

約数和(自身を除く): 21788175

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 125, 285, 375, 475, 625, 809, 1425, 1875, 2375, 2427, 4045, 7125, 11875, 12135, 15371, 20225, 35625, 46113, 60675, 76855, 101125, 230565, 303375, 384275, 505625, 1152825, 1516875, 1921375, 5764125, 9606875, 28820625]

約数ペア:

[(1, 28820625), (3, 9606875), (5, 5764125), (15, 1921375), (19, 1516875), (25, 1152825), (57, 505625), (75, 384275), (95, 303375), (125, 230565), (285, 101125), (375, 76855), (475, 60675), (625, 46113), (809, 35625), (1425, 20225), (1875, 15371), (2375, 12135), (2427, 11875), (4045, 7125)]