172866925

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{1009}}^1$

素因数の和:1126

約数の個数: 48

約数和(自身を含む): 270518400

約数和(自身を除く): 97651475

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 89, 175, 275, 385, 445, 623, 979, 1009, 1925, 2225, 3115, 4895, 5045, 6853, 7063, 11099, 15575, 24475, 25225, 34265, 35315, 55495, 77693, 89801, 171325, 176575, 277475, 388465, 449005, 628607, 987811, 1942325, 2245025, 3143035, 4939055, 6914677, 15715175, 24695275, 34573385, 172866925]

約数ペア:

[(1, 172866925), (5, 34573385), (7, 24695275), (11, 15715175), (25, 6914677), (35, 4939055), (55, 3143035), (77, 2245025), (89, 1942325), (175, 987811), (275, 628607), (385, 449005), (445, 388465), (623, 277475), (979, 176575), (1009, 171325), (1925, 89801), (2225, 77693), (3115, 55495), (4895, 35315), (5045, 34265), (6853, 25225), (7063, 24475), (11099, 15575)]