20309072

素因数分解:

$2^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{4217}}^1$

素因数の和:4275

約数の個数: 40

約数和(自身を含む): 46026816

約数和(自身を除く): 25717744

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 43, 56, 86, 112, 172, 301, 344, 602, 688, 1204, 2408, 4217, 4816, 8434, 16868, 29519, 33736, 59038, 67472, 118076, 181331, 236152, 362662, 472304, 725324, 1269317, 1450648, 2538634, 2901296, 5077268, 10154536, 20309072]

約数ペア:

[(1, 20309072), (2, 10154536), (4, 5077268), (7, 2901296), (8, 2538634), (14, 1450648), (16, 1269317), (28, 725324), (43, 472304), (56, 362662), (86, 236152), (112, 181331), (172, 118076), (301, 67472), (344, 59038), (602, 33736), (688, 29519), (1204, 16868), (2408, 8434), (4217, 4816)]