72811160

素因数分解:

$2^3\times 5^1\times {\mathrm{1820279}}^1$

素因数の和:1820290

約数の個数: 16

約数和(自身を含む): 163825200

約数和(自身を除く): 91014040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1820279, 3640558, 7281116, 9101395, 14562232, 18202790, 36405580, 72811160]

約数ペア:

[(1, 72811160), (2, 36405580), (4, 18202790), (5, 14562232), (8, 9101395), (10, 7281116), (20, 3640558), (40, 1820279)]