16404440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31547}}^1$

素因数の和:31571

約数の個数: 32

約数和(自身を含む): 39750480

約数和(自身を除く): 23346040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 31547, 63094, 126188, 157735, 252376, 315470, 410111, 630940, 820222, 1261880, 1640444, 2050555, 3280888, 4101110, 8202220, 16404440]

約数ペア:

[(1, 16404440), (2, 8202220), (4, 4101110), (5, 3280888), (8, 2050555), (10, 1640444), (13, 1261880), (20, 820222), (26, 630940), (40, 410111), (52, 315470), (65, 252376), (104, 157735), (130, 126188), (260, 63094), (520, 31547)]