18558320

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{21089}}^1$

素因数の和:21113

約数の個数: 40

約数和(自身を含む): 47072880

約数和(自身を除く): 28514560

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 21089, 42178, 84356, 105445, 168712, 210890, 231979, 337424, 421780, 463958, 843560, 927916, 1159895, 1687120, 1855832, 2319790, 3711664, 4639580, 9279160, 18558320]

約数ペア:

[(1, 18558320), (2, 9279160), (4, 4639580), (5, 3711664), (8, 2319790), (10, 1855832), (11, 1687120), (16, 1159895), (20, 927916), (22, 843560), (40, 463958), (44, 421780), (55, 337424), (80, 231979), (88, 210890), (110, 168712), (176, 105445), (220, 84356), (440, 42178), (880, 21089)]