207918375

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{103}}^1\times {\mathrm{769}}^1$

素因数の和:897

約数の個数: 64

約数和(自身を含む): 399759360

約数和(自身を除く): 191840985

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 103, 105, 125, 175, 309, 375, 515, 525, 721, 769, 875, 1545, 2163, 2307, 2575, 2625, 3605, 3845, 5383, 7725, 10815, 11535, 12875, 16149, 18025, 19225, 26915, 38625, 54075, 57675, 79207, 80745, 90125, 96125, 134575, 237621, 270375, 288375, 396035, 403725, 554449, 672875, 1188105, 1663347, 1980175, 2018625, 2772245, 5940525, 8316735, 9900875, 13861225, 29702625, 41583675, 69306125, 207918375]

約数ペア:

[(1, 207918375), (3, 69306125), (5, 41583675), (7, 29702625), (15, 13861225), (21, 9900875), (25, 8316735), (35, 5940525), (75, 2772245), (103, 2018625), (105, 1980175), (125, 1663347), (175, 1188105), (309, 672875), (375, 554449), (515, 403725), (525, 396035), (721, 288375), (769, 270375), (875, 237621), (1545, 134575), (2163, 96125), (2307, 90125), (2575, 80745), (2625, 79207), (3605, 57675), (3845, 54075), (5383, 38625), (7725, 26915), (10815, 19225), (11535, 18025), (12875, 16149)]