205979375

素因数分解:

$5^4\times 7^1\times {\mathrm{23}}^2\times {\mathrm{89}}^1$

素因数の和:162

約数の個数: 60

約数和(自身を含む): 310962960

約数和(自身を除く): 104983585

約数列:

[1, 5, 7, 23, 25, 35, 89, 115, 125, 161, 175, 445, 529, 575, 623, 625, 805, 875, 2047, 2225, 2645, 2875, 3115, 3703, 4025, 4375, 10235, 11125, 13225, 14329, 14375, 15575, 18515, 20125, 47081, 51175, 55625, 66125, 71645, 77875, 92575, 100625, 235405, 255875, 329567, 330625, 358225, 389375, 462875, 1177025, 1279375, 1647835, 1791125, 2314375, 5885125, 8239175, 8955625, 29425625, 41195875, 205979375]

約数ペア:

[(1, 205979375), (5, 41195875), (7, 29425625), (23, 8955625), (25, 8239175), (35, 5885125), (89, 2314375), (115, 1791125), (125, 1647835), (161, 1279375), (175, 1177025), (445, 462875), (529, 389375), (575, 358225), (623, 330625), (625, 329567), (805, 255875), (875, 235405), (2047, 100625), (2225, 92575), (2645, 77875), (2875, 71645), (3115, 66125), (3703, 55625), (4025, 51175), (4375, 47081), (10235, 20125), (11125, 18515), (13225, 15575), (14329, 14375)]