19742800

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{641}}^1$

素因数の和:677

約数の個数: 120

約数和(自身を含む): 59228352

約数和(自身を除く): 39485552

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 25, 28, 35, 40, 44, 50, 55, 56, 70, 77, 80, 88, 100, 110, 112, 140, 154, 175, 176, 200, 220, 275, 280, 308, 350, 385, 400, 440, 550, 560, 616, 641, 700, 770, 880, 1100, 1232, 1282, 1400, 1540, 1925, 2200, 2564, 2800, 3080, 3205, 3850, 4400, 4487, 5128, 6160, 6410, 7051, 7700, 8974, 10256, 12820, 14102, 15400, 16025, 17948, 22435, 25640, 28204, 30800, 32050, 35255, 35896, 44870, 49357, 51280, 56408, 64100, 70510, 71792, 89740, 98714, 112175, 112816, 128200, 141020, 176275, 179480, 197428, 224350, 246785, 256400, 282040, 352550, 358960, 394856, 448700, 493570, 564080, 705100, 789712, 897400, 987140, 1233925, 1410200, 1794800, 1974280, 2467850, 2820400, 3948560, 4935700, 9871400, 19742800]

約数ペア:

[(1, 19742800), (2, 9871400), (4, 4935700), (5, 3948560), (7, 2820400), (8, 2467850), (10, 1974280), (11, 1794800), (14, 1410200), (16, 1233925), (20, 987140), (22, 897400), (25, 789712), (28, 705100), (35, 564080), (40, 493570), (44, 448700), (50, 394856), (55, 358960), (56, 352550), (70, 282040), (77, 256400), (80, 246785), (88, 224350), (100, 197428), (110, 179480), (112, 176275), (140, 141020), (154, 128200), (175, 112816), (176, 112175), (200, 98714), (220, 89740), (275, 71792), (280, 70510), (308, 64100), (350, 56408), (385, 51280), (400, 49357), (440, 44870), (550, 35896), (560, 35255), (616, 32050), (641, 30800), (700, 28204), (770, 25640), (880, 22435), (1100, 17948), (1232, 16025), (1282, 15400), (1400, 14102), (1540, 12820), (1925, 10256), (2200, 8974), (2564, 7700), (2800, 7051), (3080, 6410), (3205, 6160), (3850, 5128), (4400, 4487)]