28186210

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{1381}}^1$

素因数の和:1558

約数の個数: 32

約数和(自身を含む): 55025712

約数和(自身を除く): 26839502

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 157, 314, 785, 1381, 1570, 2041, 2762, 4082, 6905, 10205, 13810, 17953, 20410, 35906, 89765, 179530, 216817, 433634, 1084085, 2168170, 2818621, 5637242, 14093105, 28186210]

約数ペア:

[(1, 28186210), (2, 14093105), (5, 5637242), (10, 2818621), (13, 2168170), (26, 1084085), (65, 433634), (130, 216817), (157, 179530), (314, 89765), (785, 35906), (1381, 20410), (1570, 17953), (2041, 13810), (2762, 10205), (4082, 6905)]