172123525

素因数分解:

$5^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{1979}}^1$

素因数の和:2074

約数の個数: 36

約数和(自身を含む): 251903520

約数和(自身を除く): 79779995

約数列:

[1, 5, 7, 25, 35, 49, 71, 175, 245, 355, 497, 1225, 1775, 1979, 2485, 3479, 9895, 12425, 13853, 17395, 49475, 69265, 86975, 96971, 140509, 346325, 484855, 702545, 983563, 2424275, 3512725, 4917815, 6884941, 24589075, 34424705, 172123525]

約数ペア:

[(1, 172123525), (5, 34424705), (7, 24589075), (25, 6884941), (35, 4917815), (49, 3512725), (71, 2424275), (175, 983563), (245, 702545), (355, 484855), (497, 346325), (1225, 140509), (1775, 96971), (1979, 86975), (2485, 69265), (3479, 49475), (9895, 17395), (12425, 13853)]