20177872

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{8819}}^1$

素因数の和:8851

約数の個数: 40

約数和(自身を含む): 45934560

約数和(自身を除く): 25756688

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 88, 104, 143, 176, 208, 286, 572, 1144, 2288, 8819, 17638, 35276, 70552, 97009, 114647, 141104, 194018, 229294, 388036, 458588, 776072, 917176, 1261117, 1552144, 1834352, 2522234, 5044468, 10088936, 20177872]

約数ペア:

[(1, 20177872), (2, 10088936), (4, 5044468), (8, 2522234), (11, 1834352), (13, 1552144), (16, 1261117), (22, 917176), (26, 776072), (44, 458588), (52, 388036), (88, 229294), (104, 194018), (143, 141104), (176, 114647), (208, 97009), (286, 70552), (572, 35276), (1144, 17638), (2288, 8819)]