20445600

素因数分解:

$2^5\times 3^1\times 5^2\times 7^1\times {\mathrm{1217}}^1$

素因数の和:1247

約数の個数: 144

約数和(自身を含む): 76120128

約数和(自身を除く): 55674528

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 25, 28, 30, 32, 35, 40, 42, 48, 50, 56, 60, 70, 75, 80, 84, 96, 100, 105, 112, 120, 140, 150, 160, 168, 175, 200, 210, 224, 240, 280, 300, 336, 350, 400, 420, 480, 525, 560, 600, 672, 700, 800, 840, 1050, 1120, 1200, 1217, 1400, 1680, 2100, 2400, 2434, 2800, 3360, 3651, 4200, 4868, 5600, 6085, 7302, 8400, 8519, 9736, 12170, 14604, 16800, 17038, 18255, 19472, 24340, 25557, 29208, 30425, 34076, 36510, 38944, 42595, 48680, 51114, 58416, 60850, 68152, 73020, 85190, 91275, 97360, 102228, 116832, 121700, 127785, 136304, 146040, 170380, 182550, 194720, 204456, 212975, 243400, 255570, 272608, 292080, 340760, 365100, 408912, 425950, 486800, 511140, 584160, 638925, 681520, 730200, 817824, 851900, 973600, 1022280, 1277850, 1363040, 1460400, 1703800, 2044560, 2555700, 2920800, 3407600, 4089120, 5111400, 6815200, 10222800, 20445600]

約数ペア:

[(1, 20445600), (2, 10222800), (3, 6815200), (4, 5111400), (5, 4089120), (6, 3407600), (7, 2920800), (8, 2555700), (10, 2044560), (12, 1703800), (14, 1460400), (15, 1363040), (16, 1277850), (20, 1022280), (21, 973600), (24, 851900), (25, 817824), (28, 730200), (30, 681520), (32, 638925), (35, 584160), (40, 511140), (42, 486800), (48, 425950), (50, 408912), (56, 365100), (60, 340760), (70, 292080), (75, 272608), (80, 255570), (84, 243400), (96, 212975), (100, 204456), (105, 194720), (112, 182550), (120, 170380), (140, 146040), (150, 136304), (160, 127785), (168, 121700), (175, 116832), (200, 102228), (210, 97360), (224, 91275), (240, 85190), (280, 73020), (300, 68152), (336, 60850), (350, 58416), (400, 51114), (420, 48680), (480, 42595), (525, 38944), (560, 36510), (600, 34076), (672, 30425), (700, 29208), (800, 25557), (840, 24340), (1050, 19472), (1120, 18255), (1200, 17038), (1217, 16800), (1400, 14604), (1680, 12170), (2100, 9736), (2400, 8519), (2434, 8400), (2800, 7302), (3360, 6085), (3651, 5600), (4200, 4868)]