19494640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{22153}}^1$

素因数の和:22177

約数の個数: 40

約数和(自身を含む): 49447728

約数和(自身を除く): 29953088

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 22153, 44306, 88612, 110765, 177224, 221530, 243683, 354448, 443060, 487366, 886120, 974732, 1218415, 1772240, 1949464, 2436830, 3898928, 4873660, 9747320, 19494640]

約数ペア:

[(1, 19494640), (2, 9747320), (4, 4873660), (5, 3898928), (8, 2436830), (10, 1949464), (11, 1772240), (16, 1218415), (20, 974732), (22, 886120), (40, 487366), (44, 443060), (55, 354448), (80, 243683), (88, 221530), (110, 177224), (176, 110765), (220, 88612), (440, 44306), (880, 22153)]