217660760

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{115777}}^1$

素因数の和:115835

約数の個数: 32

約数和(自身を含む): 500160960

約数和(自身を除く): 282500200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 115777, 231554, 463108, 578885, 926216, 1157770, 2315540, 4631080, 5441519, 10883038, 21766076, 27207595, 43532152, 54415190, 108830380, 217660760]

約数ペア:

[(1, 217660760), (2, 108830380), (4, 54415190), (5, 43532152), (8, 27207595), (10, 21766076), (20, 10883038), (40, 5441519), (47, 4631080), (94, 2315540), (188, 1157770), (235, 926216), (376, 578885), (470, 463108), (940, 231554), (1880, 115777)]