18456680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41947}}^1$

素因数の和:41969

約数の個数: 32

約数和(自身を含む): 45303840

約数和(自身を除く): 26847160

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 41947, 83894, 167788, 209735, 335576, 419470, 461417, 838940, 922834, 1677880, 1845668, 2307085, 3691336, 4614170, 9228340, 18456680]

約数ペア:

[(1, 18456680), (2, 9228340), (4, 4614170), (5, 3691336), (8, 2307085), (10, 1845668), (11, 1677880), (20, 922834), (22, 838940), (40, 461417), (44, 419470), (55, 335576), (88, 209735), (110, 167788), (220, 83894), (440, 41947)]