20728304

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{76207}}^1$

素因数の和:76232

約数の個数: 20

約数和(自身を含む): 42524064

約数和(自身を除く): 21795760

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 76207, 152414, 304828, 609656, 1219312, 1295519, 2591038, 5182076, 10364152, 20728304]

約数ペア:

[(1, 20728304), (2, 10364152), (4, 5182076), (8, 2591038), (16, 1295519), (17, 1219312), (34, 609656), (68, 304828), (136, 152414), (272, 76207)]