20120497904

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{433781}}^1$

素因数の和:434025

約数の個数: 40

約数和(自身を含む): 42170550912

約数和(自身を除く): 22050053008

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 223, 446, 892, 1784, 2899, 3568, 5798, 11596, 23192, 46384, 433781, 867562, 1735124, 3470248, 5639153, 6940496, 11278306, 22556612, 45113224, 90226448, 96733163, 193466326, 386932652, 773865304, 1257531119, 1547730608, 2515062238, 5030124476, 10060248952, 20120497904]

約数ペア:

[(1, 20120497904), (2, 10060248952), (4, 5030124476), (8, 2515062238), (13, 1547730608), (16, 1257531119), (26, 773865304), (52, 386932652), (104, 193466326), (208, 96733163), (223, 90226448), (446, 45113224), (892, 22556612), (1784, 11278306), (2899, 6940496), (3568, 5639153), (5798, 3470248), (11596, 1735124), (23192, 867562), (46384, 433781)]