1981009989505

素因数分解:

$5^1\times {\mathrm{83}}^1\times {\mathrm{1999}}^1\times {\mathrm{2387953}}^1$

素因数の和:2390040

約数の個数: 16

約数和(自身を含む): 2407057632000

約数和(自身を除く): 426047642495

約数列:

[1, 5, 83, 415, 1999, 9995, 165917, 829585, 2387953, 11939765, 198200099, 991000495, 4773518047, 23867590235, 396201997901, 1981009989505]

約数ペア:

[(1, 1981009989505), (5, 396201997901), (83, 23867590235), (415, 4773518047), (1999, 991000495), (9995, 198200099), (165917, 11939765), (829585, 2387953)]