18840800

素因数分解:

$2^5\times 5^2\times {\mathrm{11}}^1\times {\mathrm{2141}}^1$

素因数の和:2172

約数の個数: 72

約数和(自身を含む): 50199912

約数和(自身を除く): 31359112

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 44, 50, 55, 80, 88, 100, 110, 160, 176, 200, 220, 275, 352, 400, 440, 550, 800, 880, 1100, 1760, 2141, 2200, 4282, 4400, 8564, 8800, 10705, 17128, 21410, 23551, 34256, 42820, 47102, 53525, 68512, 85640, 94204, 107050, 117755, 171280, 188408, 214100, 235510, 342560, 376816, 428200, 471020, 588775, 753632, 856400, 942040, 1177550, 1712800, 1884080, 2355100, 3768160, 4710200, 9420400, 18840800]

約数ペア:

[(1, 18840800), (2, 9420400), (4, 4710200), (5, 3768160), (8, 2355100), (10, 1884080), (11, 1712800), (16, 1177550), (20, 942040), (22, 856400), (25, 753632), (32, 588775), (40, 471020), (44, 428200), (50, 376816), (55, 342560), (80, 235510), (88, 214100), (100, 188408), (110, 171280), (160, 117755), (176, 107050), (200, 94204), (220, 85640), (275, 68512), (352, 53525), (400, 47102), (440, 42820), (550, 34256), (800, 23551), (880, 21410), (1100, 17128), (1760, 10705), (2141, 8800), (2200, 8564), (4282, 4400)]