197020945

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1\times {\mathrm{383}}^1$

素因数の和:645

約数の個数: 32

約数和(自身を含む): 265420800

約数和(自身を除く): 68399855

約数列:

[1, 5, 11, 47, 55, 199, 235, 383, 517, 995, 1915, 2189, 2585, 4213, 9353, 10945, 18001, 21065, 46765, 76217, 90005, 102883, 198011, 381085, 514415, 838387, 990055, 3582199, 4191935, 17910995, 39404189, 197020945]

約数ペア:

[(1, 197020945), (5, 39404189), (11, 17910995), (47, 4191935), (55, 3582199), (199, 990055), (235, 838387), (383, 514415), (517, 381085), (995, 198011), (1915, 102883), (2189, 90005), (2585, 76217), (4213, 46765), (9353, 21065), (10945, 18001)]