18125360

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{479}}^1$

素因数の和:546

約数の個数: 80

約数和(自身を含む): 47139840

約数和(自身を除く): 29014480

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 43, 44, 55, 80, 86, 88, 110, 172, 176, 215, 220, 344, 430, 440, 473, 479, 688, 860, 880, 946, 958, 1720, 1892, 1916, 2365, 2395, 3440, 3784, 3832, 4730, 4790, 5269, 7568, 7664, 9460, 9580, 10538, 18920, 19160, 20597, 21076, 26345, 37840, 38320, 41194, 42152, 52690, 82388, 84304, 102985, 105380, 164776, 205970, 210760, 226567, 329552, 411940, 421520, 453134, 823880, 906268, 1132835, 1647760, 1812536, 2265670, 3625072, 4531340, 9062680, 18125360]

約数ペア:

[(1, 18125360), (2, 9062680), (4, 4531340), (5, 3625072), (8, 2265670), (10, 1812536), (11, 1647760), (16, 1132835), (20, 906268), (22, 823880), (40, 453134), (43, 421520), (44, 411940), (55, 329552), (80, 226567), (86, 210760), (88, 205970), (110, 164776), (172, 105380), (176, 102985), (215, 84304), (220, 82388), (344, 52690), (430, 42152), (440, 41194), (473, 38320), (479, 37840), (688, 26345), (860, 21076), (880, 20597), (946, 19160), (958, 18920), (1720, 10538), (1892, 9580), (1916, 9460), (2365, 7664), (2395, 7568), (3440, 5269), (3784, 4790), (3832, 4730)]