2780451080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{154127}}^1$

素因数の和:154190

約数の個数: 64

約数和(自身を含む): 6991246080

約数和(自身を除く): 4210795000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 41, 44, 55, 82, 88, 110, 164, 205, 220, 328, 410, 440, 451, 820, 902, 1640, 1804, 2255, 3608, 4510, 9020, 18040, 154127, 308254, 616508, 770635, 1233016, 1541270, 1695397, 3082540, 3390794, 6165080, 6319207, 6781588, 8476985, 12638414, 13563176, 16953970, 25276828, 31596035, 33907940, 50553656, 63192070, 67815880, 69511277, 126384140, 139022554, 252768280, 278045108, 347556385, 556090216, 695112770, 1390225540, 2780451080]

約数ペア:

[(1, 2780451080), (2, 1390225540), (4, 695112770), (5, 556090216), (8, 347556385), (10, 278045108), (11, 252768280), (20, 139022554), (22, 126384140), (40, 69511277), (41, 67815880), (44, 63192070), (55, 50553656), (82, 33907940), (88, 31596035), (110, 25276828), (164, 16953970), (205, 13563176), (220, 12638414), (328, 8476985), (410, 6781588), (440, 6319207), (451, 6165080), (820, 3390794), (902, 3082540), (1640, 1695397), (1804, 1541270), (2255, 1233016), (3608, 770635), (4510, 616508), (9020, 308254), (18040, 154127)]