389778884

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{599}}^1\times {\mathrm{643}}^1$

素因数の和:1280

約数の個数: 48

約数和(自身を含む): 778982400

約数和(自身を除く): 389203516

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 253, 506, 599, 643, 1012, 1198, 1286, 2396, 2572, 6589, 7073, 13178, 13777, 14146, 14789, 26356, 27554, 28292, 29578, 55108, 59156, 151547, 162679, 303094, 325358, 385157, 606188, 650716, 770314, 1540628, 4236727, 8473454, 8858611, 16946908, 17717222, 35434444, 97444721, 194889442, 389778884]

約数ペア:

[(1, 389778884), (2, 194889442), (4, 97444721), (11, 35434444), (22, 17717222), (23, 16946908), (44, 8858611), (46, 8473454), (92, 4236727), (253, 1540628), (506, 770314), (599, 650716), (643, 606188), (1012, 385157), (1198, 325358), (1286, 303094), (2396, 162679), (2572, 151547), (6589, 59156), (7073, 55108), (13178, 29578), (13777, 28292), (14146, 27554), (14789, 26356)]