28520870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{1931}}^1$

素因数の和:2156

約数の個数: 32

約数和(自身を含む): 58980096

約数和(自身を除く): 30459226

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 211, 422, 1055, 1477, 1931, 2110, 2954, 3862, 7385, 9655, 13517, 14770, 19310, 27034, 67585, 135170, 407441, 814882, 2037205, 2852087, 4074410, 5704174, 14260435, 28520870]

約数ペア:

[(1, 28520870), (2, 14260435), (5, 5704174), (7, 4074410), (10, 2852087), (14, 2037205), (35, 814882), (70, 407441), (211, 135170), (422, 67585), (1055, 27034), (1477, 19310), (1931, 14770), (2110, 13517), (2954, 9655), (3862, 7385)]