20384936

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{173}}^1$

素因数の和:306

約数の個数: 64

約数和(自身を含む): 45601920

約数和(自身を除く): 25216984

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 103, 104, 143, 173, 206, 286, 346, 412, 572, 692, 824, 1133, 1144, 1339, 1384, 1903, 2249, 2266, 2678, 3806, 4498, 4532, 5356, 7612, 8996, 9064, 10712, 14729, 15224, 17819, 17992, 24739, 29458, 35638, 49478, 58916, 71276, 98956, 117832, 142552, 196009, 197912, 231647, 392018, 463294, 784036, 926588, 1568072, 1853176, 2548117, 5096234, 10192468, 20384936]

約数ペア:

[(1, 20384936), (2, 10192468), (4, 5096234), (8, 2548117), (11, 1853176), (13, 1568072), (22, 926588), (26, 784036), (44, 463294), (52, 392018), (88, 231647), (103, 197912), (104, 196009), (143, 142552), (173, 117832), (206, 98956), (286, 71276), (346, 58916), (412, 49478), (572, 35638), (692, 29458), (824, 24739), (1133, 17992), (1144, 17819), (1339, 15224), (1384, 14729), (1903, 10712), (2249, 9064), (2266, 8996), (2678, 7612), (3806, 5356), (4498, 4532)]