28404272

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{136559}}^1$

素因数の和:136580

約数の個数: 20

約数和(自身を含む): 59267040

約数和(自身を除く): 30862768

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 136559, 273118, 546236, 1092472, 1775267, 2184944, 3550534, 7101068, 14202136, 28404272]

約数ペア:

[(1, 28404272), (2, 14202136), (4, 7101068), (8, 3550534), (13, 2184944), (16, 1775267), (26, 1092472), (52, 546236), (104, 273118), (208, 136559)]