20851550090

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{287251}}^1$

素因数の和:287343

約数の個数: 64

約数和(自身を含む): 46162545408

約数和(自身を除く): 25310995318

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 61, 70, 85, 119, 122, 170, 238, 305, 427, 595, 610, 854, 1037, 1190, 2074, 2135, 4270, 5185, 7259, 10370, 14518, 36295, 72590, 287251, 574502, 1436255, 2010757, 2872510, 4021514, 4883267, 9766534, 10053785, 17522311, 20107570, 24416335, 34182869, 35044622, 48832670, 68365738, 87611555, 122656177, 170914345, 175223110, 245312354, 297879287, 341828690, 595758574, 613280885, 1226561770, 1489396435, 2085155009, 2978792870, 4170310018, 10425775045, 20851550090]

約数ペア:

[(1, 20851550090), (2, 10425775045), (5, 4170310018), (7, 2978792870), (10, 2085155009), (14, 1489396435), (17, 1226561770), (34, 613280885), (35, 595758574), (61, 341828690), (70, 297879287), (85, 245312354), (119, 175223110), (122, 170914345), (170, 122656177), (238, 87611555), (305, 68365738), (427, 48832670), (595, 35044622), (610, 34182869), (854, 24416335), (1037, 20107570), (1190, 17522311), (2074, 10053785), (2135, 9766534), (4270, 4883267), (5185, 4021514), (7259, 2872510), (10370, 2010757), (14518, 1436255), (36295, 574502), (72590, 287251)]