20218840

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{21977}}^1$

素因数の和:22011

約数の個数: 32

約数和(自身を含む): 47472480

約数和(自身を除く): 27253640

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 21977, 43954, 87908, 109885, 175816, 219770, 439540, 505471, 879080, 1010942, 2021884, 2527355, 4043768, 5054710, 10109420, 20218840]

約数ペア:

[(1, 20218840), (2, 10109420), (4, 5054710), (5, 4043768), (8, 2527355), (10, 2021884), (20, 1010942), (23, 879080), (40, 505471), (46, 439540), (92, 219770), (115, 175816), (184, 109885), (230, 87908), (460, 43954), (920, 21977)]