20698320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{86243}}^1$

素因数の和:86259

約数の個数: 40

約数和(自身を含む): 64165536

約数和(自身を除く): 43467216

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 86243, 172486, 258729, 344972, 431215, 517458, 689944, 862430, 1034916, 1293645, 1379888, 1724860, 2069832, 2587290, 3449720, 4139664, 5174580, 6899440, 10349160, 20698320]

約数ペア:

[(1, 20698320), (2, 10349160), (3, 6899440), (4, 5174580), (5, 4139664), (6, 3449720), (8, 2587290), (10, 2069832), (12, 1724860), (15, 1379888), (16, 1293645), (20, 1034916), (24, 862430), (30, 689944), (40, 517458), (48, 431215), (60, 344972), (80, 258729), (120, 172486), (240, 86243)]