84140980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{4967}}^1$

素因数の和:5005

約数の個数: 72

約数和(自身を含む): 222009984

約数和(自身を除く): 137869004

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 121, 140, 154, 220, 242, 308, 385, 484, 605, 770, 847, 1210, 1540, 1694, 2420, 3388, 4235, 4967, 8470, 9934, 16940, 19868, 24835, 34769, 49670, 54637, 69538, 99340, 109274, 139076, 173845, 218548, 273185, 347690, 382459, 546370, 601007, 695380, 764918, 1092740, 1202014, 1529836, 1912295, 2404028, 3005035, 3824590, 4207049, 6010070, 7649180, 8414098, 12020140, 16828196, 21035245, 42070490, 84140980]

約数ペア:

[(1, 84140980), (2, 42070490), (4, 21035245), (5, 16828196), (7, 12020140), (10, 8414098), (11, 7649180), (14, 6010070), (20, 4207049), (22, 3824590), (28, 3005035), (35, 2404028), (44, 1912295), (55, 1529836), (70, 1202014), (77, 1092740), (110, 764918), (121, 695380), (140, 601007), (154, 546370), (220, 382459), (242, 347690), (308, 273185), (385, 218548), (484, 173845), (605, 139076), (770, 109274), (847, 99340), (1210, 69538), (1540, 54637), (1694, 49670), (2420, 34769), (3388, 24835), (4235, 19868), (4967, 16940), (8470, 9934)]