18394640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{20903}}^1$

素因数の和:20927

約数の個数: 40

約数和(自身を含む): 46657728

約数和(自身を除く): 28263088

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 20903, 41806, 83612, 104515, 167224, 209030, 229933, 334448, 418060, 459866, 836120, 919732, 1149665, 1672240, 1839464, 2299330, 3678928, 4598660, 9197320, 18394640]

約数ペア:

[(1, 18394640), (2, 9197320), (4, 4598660), (5, 3678928), (8, 2299330), (10, 1839464), (11, 1672240), (16, 1149665), (20, 919732), (22, 836120), (40, 459866), (44, 418060), (55, 334448), (80, 229933), (88, 209030), (110, 167224), (176, 104515), (220, 83612), (440, 41806), (880, 20903)]