20381569120

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{1052767}}^1$

素因数の和:1052804

約数の個数: 72

約数和(自身を含む): 52926858432

約数和(自身を除く): 32545289312

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 121, 160, 176, 220, 242, 352, 440, 484, 605, 880, 968, 1210, 1760, 1936, 2420, 3872, 4840, 9680, 19360, 1052767, 2105534, 4211068, 5263835, 8422136, 10527670, 11580437, 16844272, 21055340, 23160874, 33688544, 42110680, 46321748, 57902185, 84221360, 92643496, 115804370, 127384807, 168442720, 185286992, 231608740, 254769614, 370573984, 463217480, 509539228, 636924035, 926434960, 1019078456, 1273848070, 1852869920, 2038156912, 2547696140, 4076313824, 5095392280, 10190784560, 20381569120]

約数ペア:

[(1, 20381569120), (2, 10190784560), (4, 5095392280), (5, 4076313824), (8, 2547696140), (10, 2038156912), (11, 1852869920), (16, 1273848070), (20, 1019078456), (22, 926434960), (32, 636924035), (40, 509539228), (44, 463217480), (55, 370573984), (80, 254769614), (88, 231608740), (110, 185286992), (121, 168442720), (160, 127384807), (176, 115804370), (220, 92643496), (242, 84221360), (352, 57902185), (440, 46321748), (484, 42110680), (605, 33688544), (880, 23160874), (968, 21055340), (1210, 16844272), (1760, 11580437), (1936, 10527670), (2420, 8422136), (3872, 5263835), (4840, 4211068), (9680, 2105534), (19360, 1052767)]