28390310

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{107}}^1\times {\mathrm{157}}^1$

素因数の和:297

約数の個数: 48

約数和(自身を含む): 56208816

約数和(自身を除く): 27818506

約数列:

[1, 2, 5, 10, 13, 26, 65, 107, 130, 157, 169, 214, 314, 338, 535, 785, 845, 1070, 1391, 1570, 1690, 2041, 2782, 4082, 6955, 10205, 13910, 16799, 18083, 20410, 26533, 33598, 36166, 53066, 83995, 90415, 132665, 167990, 180830, 218387, 265330, 436774, 1091935, 2183870, 2839031, 5678062, 14195155, 28390310]

約数ペア:

[(1, 28390310), (2, 14195155), (5, 5678062), (10, 2839031), (13, 2183870), (26, 1091935), (65, 436774), (107, 265330), (130, 218387), (157, 180830), (169, 167990), (214, 132665), (314, 90415), (338, 83995), (535, 53066), (785, 36166), (845, 33598), (1070, 26533), (1391, 20410), (1570, 18083), (1690, 16799), (2041, 13910), (2782, 10205), (4082, 6955)]