209863220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{491}}^1$

素因数の和:621

約数の個数: 96

約数和(自身を含む): 523708416

約数和(自身を除く): 313845196

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 71, 86, 140, 142, 172, 215, 284, 301, 355, 430, 491, 497, 602, 710, 860, 982, 994, 1204, 1420, 1505, 1964, 1988, 2455, 2485, 3010, 3053, 3437, 4910, 4970, 6020, 6106, 6874, 9820, 9940, 12212, 13748, 15265, 17185, 21113, 21371, 30530, 34370, 34861, 42226, 42742, 61060, 68740, 69722, 84452, 85484, 105565, 106855, 139444, 147791, 174305, 211130, 213710, 244027, 295582, 348610, 422260, 427420, 488054, 591164, 697220, 738955, 976108, 1220135, 1477910, 1499023, 2440270, 2955820, 2998046, 4880540, 5996092, 7495115, 10493161, 14990230, 20986322, 29980460, 41972644, 52465805, 104931610, 209863220]

約数ペア:

[(1, 209863220), (2, 104931610), (4, 52465805), (5, 41972644), (7, 29980460), (10, 20986322), (14, 14990230), (20, 10493161), (28, 7495115), (35, 5996092), (43, 4880540), (70, 2998046), (71, 2955820), (86, 2440270), (140, 1499023), (142, 1477910), (172, 1220135), (215, 976108), (284, 738955), (301, 697220), (355, 591164), (430, 488054), (491, 427420), (497, 422260), (602, 348610), (710, 295582), (860, 244027), (982, 213710), (994, 211130), (1204, 174305), (1420, 147791), (1505, 139444), (1964, 106855), (1988, 105565), (2455, 85484), (2485, 84452), (3010, 69722), (3053, 68740), (3437, 61060), (4910, 42742), (4970, 42226), (6020, 34861), (6106, 34370), (6874, 30530), (9820, 21371), (9940, 21113), (12212, 17185), (13748, 15265)]