19938260

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{12011}}^1$

素因数の和:12103

約数の個数: 24

約数和(自身を含む): 42378336

約数和(自身を除く): 22440076

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 12011, 24022, 48044, 60055, 120110, 240220, 996913, 1993826, 3987652, 4984565, 9969130, 19938260]

約数ペア:

[(1, 19938260), (2, 9969130), (4, 4984565), (5, 3987652), (10, 1993826), (20, 996913), (83, 240220), (166, 120110), (332, 60055), (415, 48044), (830, 24022), (1660, 12011)]