21172800

素因数分解:

$2^6\times 3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{401}}^1$

素因数の和:437

約数の個数: 168

約数和(自身を含む): 75968352

約数和(自身を除く): 54795552

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 25, 30, 32, 33, 40, 44, 48, 50, 55, 60, 64, 66, 75, 80, 88, 96, 100, 110, 120, 132, 150, 160, 165, 176, 192, 200, 220, 240, 264, 275, 300, 320, 330, 352, 400, 401, 440, 480, 528, 550, 600, 660, 704, 800, 802, 825, 880, 960, 1056, 1100, 1200, 1203, 1320, 1600, 1604, 1650, 1760, 2005, 2112, 2200, 2400, 2406, 2640, 3208, 3300, 3520, 4010, 4400, 4411, 4800, 4812, 5280, 6015, 6416, 6600, 8020, 8800, 8822, 9624, 10025, 10560, 12030, 12832, 13200, 13233, 16040, 17600, 17644, 19248, 20050, 22055, 24060, 25664, 26400, 26466, 30075, 32080, 35288, 38496, 40100, 44110, 48120, 52800, 52932, 60150, 64160, 66165, 70576, 76992, 80200, 88220, 96240, 105864, 110275, 120300, 128320, 132330, 141152, 160400, 176440, 192480, 211728, 220550, 240600, 264660, 282304, 320800, 330825, 352880, 384960, 423456, 441100, 481200, 529320, 641600, 661650, 705760, 846912, 882200, 962400, 1058640, 1323300, 1411520, 1764400, 1924800, 2117280, 2646600, 3528800, 4234560, 5293200, 7057600, 10586400, 21172800]

約数ペア:

[(1, 21172800), (2, 10586400), (3, 7057600), (4, 5293200), (5, 4234560), (6, 3528800), (8, 2646600), (10, 2117280), (11, 1924800), (12, 1764400), (15, 1411520), (16, 1323300), (20, 1058640), (22, 962400), (24, 882200), (25, 846912), (30, 705760), (32, 661650), (33, 641600), (40, 529320), (44, 481200), (48, 441100), (50, 423456), (55, 384960), (60, 352880), (64, 330825), (66, 320800), (75, 282304), (80, 264660), (88, 240600), (96, 220550), (100, 211728), (110, 192480), (120, 176440), (132, 160400), (150, 141152), (160, 132330), (165, 128320), (176, 120300), (192, 110275), (200, 105864), (220, 96240), (240, 88220), (264, 80200), (275, 76992), (300, 70576), (320, 66165), (330, 64160), (352, 60150), (400, 52932), (401, 52800), (440, 48120), (480, 44110), (528, 40100), (550, 38496), (600, 35288), (660, 32080), (704, 30075), (800, 26466), (802, 26400), (825, 25664), (880, 24060), (960, 22055), (1056, 20050), (1100, 19248), (1200, 17644), (1203, 17600), (1320, 16040), (1600, 13233), (1604, 13200), (1650, 12832), (1760, 12030), (2005, 10560), (2112, 10025), (2200, 9624), (2400, 8822), (2406, 8800), (2640, 8020), (3208, 6600), (3300, 6416), (3520, 6015), (4010, 5280), (4400, 4812), (4411, 4800)]