80521875

素因数分解:

$3^2\times 5^5\times 7^1\times {\mathrm{409}}^1$

素因数の和:447

約数の個数: 72

約数和(自身を含む): 166551840

約数和(自身を除く): 86029965

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 105, 125, 175, 225, 315, 375, 409, 525, 625, 875, 1125, 1227, 1575, 1875, 2045, 2625, 2863, 3125, 3681, 4375, 5625, 6135, 7875, 8589, 9375, 10225, 13125, 14315, 18405, 21875, 25767, 28125, 30675, 39375, 42945, 51125, 65625, 71575, 92025, 128835, 153375, 196875, 214725, 255625, 357875, 460125, 644175, 766875, 1073625, 1278125, 1789375, 2300625, 3220875, 3834375, 5368125, 8946875, 11503125, 16104375, 26840625, 80521875]

約数ペア:

[(1, 80521875), (3, 26840625), (5, 16104375), (7, 11503125), (9, 8946875), (15, 5368125), (21, 3834375), (25, 3220875), (35, 2300625), (45, 1789375), (63, 1278125), (75, 1073625), (105, 766875), (125, 644175), (175, 460125), (225, 357875), (315, 255625), (375, 214725), (409, 196875), (525, 153375), (625, 128835), (875, 92025), (1125, 71575), (1227, 65625), (1575, 51125), (1875, 42945), (2045, 39375), (2625, 30675), (2863, 28125), (3125, 25767), (3681, 21875), (4375, 18405), (5625, 14315), (6135, 13125), (7875, 10225), (8589, 9375)]