81220147160

素因数分解:

$2^3\times 5^1\times {\mathrm{2030503679}}^1$

素因数の和:2030503690

約数の個数: 16

約数和(自身を含む): 182745331200

約数和(自身を除く): 101525184040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2030503679, 4061007358, 8122014716, 10152518395, 16244029432, 20305036790, 40610073580, 81220147160]

約数ペア:

[(1, 81220147160), (2, 40610073580), (4, 20305036790), (5, 16244029432), (8, 10152518395), (10, 8122014716), (20, 4061007358), (40, 2030503679)]