20484128

素因数分解:

$2^5\times 7^1\times {\mathrm{19}}^1\times {\mathrm{4813}}^1$

素因数の和:4849

約数の個数: 48

約数和(自身を含む): 48525120

約数和(自身を除く): 28040992

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 56, 76, 112, 133, 152, 224, 266, 304, 532, 608, 1064, 2128, 4256, 4813, 9626, 19252, 33691, 38504, 67382, 77008, 91447, 134764, 154016, 182894, 269528, 365788, 539056, 640129, 731576, 1078112, 1280258, 1463152, 2560516, 2926304, 5121032, 10242064, 20484128]

約数ペア:

[(1, 20484128), (2, 10242064), (4, 5121032), (7, 2926304), (8, 2560516), (14, 1463152), (16, 1280258), (19, 1078112), (28, 731576), (32, 640129), (38, 539056), (56, 365788), (76, 269528), (112, 182894), (133, 154016), (152, 134764), (224, 91447), (266, 77008), (304, 67382), (532, 38504), (608, 33691), (1064, 19252), (2128, 9626), (4256, 4813)]