21181600

素因数分解:

$2^5\times 5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1$

素因数の和:143

約数の個数: 144

約数和(自身を含む): 59058720

約数和(自身を除く): 37877120

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 29, 32, 40, 44, 50, 55, 58, 80, 83, 88, 100, 110, 116, 145, 160, 166, 176, 200, 220, 232, 275, 290, 319, 332, 352, 400, 415, 440, 464, 550, 580, 638, 664, 725, 800, 830, 880, 913, 928, 1100, 1160, 1276, 1328, 1450, 1595, 1660, 1760, 1826, 2075, 2200, 2320, 2407, 2552, 2656, 2900, 3190, 3320, 3652, 4150, 4400, 4565, 4640, 4814, 5104, 5800, 6380, 6640, 7304, 7975, 8300, 8800, 9130, 9628, 10208, 11600, 12035, 12760, 13280, 14608, 15950, 16600, 18260, 19256, 22825, 23200, 24070, 25520, 26477, 29216, 31900, 33200, 36520, 38512, 45650, 48140, 51040, 52954, 60175, 63800, 66400, 73040, 77024, 91300, 96280, 105908, 120350, 127600, 132385, 146080, 182600, 192560, 211816, 240700, 255200, 264770, 365200, 385120, 423632, 481400, 529540, 661925, 730400, 847264, 962800, 1059080, 1323850, 1925600, 2118160, 2647700, 4236320, 5295400, 10590800, 21181600]

約数ペア:

[(1, 21181600), (2, 10590800), (4, 5295400), (5, 4236320), (8, 2647700), (10, 2118160), (11, 1925600), (16, 1323850), (20, 1059080), (22, 962800), (25, 847264), (29, 730400), (32, 661925), (40, 529540), (44, 481400), (50, 423632), (55, 385120), (58, 365200), (80, 264770), (83, 255200), (88, 240700), (100, 211816), (110, 192560), (116, 182600), (145, 146080), (160, 132385), (166, 127600), (176, 120350), (200, 105908), (220, 96280), (232, 91300), (275, 77024), (290, 73040), (319, 66400), (332, 63800), (352, 60175), (400, 52954), (415, 51040), (440, 48140), (464, 45650), (550, 38512), (580, 36520), (638, 33200), (664, 31900), (725, 29216), (800, 26477), (830, 25520), (880, 24070), (913, 23200), (928, 22825), (1100, 19256), (1160, 18260), (1276, 16600), (1328, 15950), (1450, 14608), (1595, 13280), (1660, 12760), (1760, 12035), (1826, 11600), (2075, 10208), (2200, 9628), (2320, 9130), (2407, 8800), (2552, 8300), (2656, 7975), (2900, 7304), (3190, 6640), (3320, 6380), (3652, 5800), (4150, 5104), (4400, 4814), (4565, 4640)]