20204704

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2857}}^1$

素因数の和:2897

約数の個数: 48

約数和(自身を含む): 45373608

約数和(自身を除く): 25168904

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 68, 104, 136, 208, 221, 272, 416, 442, 544, 884, 1768, 2857, 3536, 5714, 7072, 11428, 22856, 37141, 45712, 48569, 74282, 91424, 97138, 148564, 194276, 297128, 388552, 594256, 631397, 777104, 1188512, 1262794, 1554208, 2525588, 5051176, 10102352, 20204704]

約数ペア:

[(1, 20204704), (2, 10102352), (4, 5051176), (8, 2525588), (13, 1554208), (16, 1262794), (17, 1188512), (26, 777104), (32, 631397), (34, 594256), (52, 388552), (68, 297128), (104, 194276), (136, 148564), (208, 97138), (221, 91424), (272, 74282), (416, 48569), (442, 45712), (544, 37141), (884, 22856), (1768, 11428), (2857, 7072), (3536, 5714)]