28408105

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1321}}^1$

素因数の和:1377

約数の個数: 32

約数和(自身を含む): 41119488

約数和(自身を除く): 12711383

約数列:

[1, 5, 11, 17, 23, 55, 85, 115, 187, 253, 391, 935, 1265, 1321, 1955, 4301, 6605, 14531, 21505, 22457, 30383, 72655, 112285, 151915, 247027, 334213, 516511, 1235135, 1671065, 2582555, 5681621, 28408105]

約数ペア:

[(1, 28408105), (5, 5681621), (11, 2582555), (17, 1671065), (23, 1235135), (55, 516511), (85, 334213), (115, 247027), (187, 151915), (253, 112285), (391, 72655), (935, 30383), (1265, 22457), (1321, 21505), (1955, 14531), (4301, 6605)]