638962885

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{977}}^1$

素因数の和:1074

約数の個数: 48

約数和(自身を含む): 899071488

約数和(自身を除く): 260108603

約数列:

[1, 5, 11, 23, 47, 55, 115, 121, 235, 253, 517, 605, 977, 1081, 1265, 2585, 2783, 4885, 5405, 5687, 10747, 11891, 13915, 22471, 28435, 45919, 53735, 59455, 112355, 118217, 130801, 229595, 247181, 505109, 591085, 654005, 1056137, 1235905, 2525545, 2718991, 5280685, 5556199, 11617507, 13594955, 27780995, 58087535, 127792577, 638962885]

約数ペア:

[(1, 638962885), (5, 127792577), (11, 58087535), (23, 27780995), (47, 13594955), (55, 11617507), (115, 5556199), (121, 5280685), (235, 2718991), (253, 2525545), (517, 1235905), (605, 1056137), (977, 654005), (1081, 591085), (1265, 505109), (2585, 247181), (2783, 229595), (4885, 130801), (5405, 118217), (5687, 112355), (10747, 59455), (11891, 53735), (13915, 45919), (22471, 28435)]