20945584

素因数分解:

$2^4\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{349}}^1$

素因数の和:410

約数の個数: 60

約数和(自身を含む): 46177600

約数和(自身を除く): 25232016

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 44, 62, 88, 121, 124, 176, 242, 248, 341, 349, 484, 496, 682, 698, 968, 1364, 1396, 1936, 2728, 2792, 3751, 3839, 5456, 5584, 7502, 7678, 10819, 15004, 15356, 21638, 30008, 30712, 42229, 43276, 60016, 61424, 84458, 86552, 119009, 168916, 173104, 238018, 337832, 476036, 675664, 952072, 1309099, 1904144, 2618198, 5236396, 10472792, 20945584]

約数ペア:

[(1, 20945584), (2, 10472792), (4, 5236396), (8, 2618198), (11, 1904144), (16, 1309099), (22, 952072), (31, 675664), (44, 476036), (62, 337832), (88, 238018), (121, 173104), (124, 168916), (176, 119009), (242, 86552), (248, 84458), (341, 61424), (349, 60016), (484, 43276), (496, 42229), (682, 30712), (698, 30008), (968, 21638), (1364, 15356), (1396, 15004), (1936, 10819), (2728, 7678), (2792, 7502), (3751, 5584), (3839, 5456)]