20801472805

素因数分解:

$5^1\times {\mathrm{353}}^1\times {\mathrm{997}}^1\times {\mathrm{11821}}^1$

素因数の和:13176

約数の個数: 16

約数和(自身を含む): 25059708144

約数和(自身を除く): 4258235339

約数列:

[1, 5, 353, 997, 1765, 4985, 11821, 59105, 351941, 1759705, 4172813, 11785537, 20864065, 58927685, 4160294561, 20801472805]

約数ペア:

[(1, 20801472805), (5, 4160294561), (353, 58927685), (997, 20864065), (1765, 11785537), (4985, 4172813), (11821, 1759705), (59105, 351941)]