20193627728

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{337}}^1\times {\mathrm{439}}^1\times {\mathrm{449}}^1$

素因数の和:1252

約数の個数: 80

約数和(自身を含む): 41492880000

約数和(自身を除く): 21299252272

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 337, 439, 449, 674, 878, 898, 1348, 1756, 1796, 2696, 3512, 3592, 5392, 6403, 7024, 7184, 8341, 8531, 12806, 16682, 17062, 25612, 33364, 34124, 51224, 66728, 68248, 102448, 133456, 136496, 147943, 151313, 197111, 295886, 302626, 394222, 591772, 605252, 788444, 1183544, 1210504, 1576888, 2367088, 2421008, 2810917, 2874947, 3153776, 3745109, 5621834, 5749894, 7490218, 11243668, 11499788, 14980436, 22487336, 22999576, 29960872, 44974672, 45999152, 59921744, 66426407, 132852814, 265705628, 531411256, 1062822512, 1262101733, 2524203466, 5048406932, 10096813864, 20193627728]

約数ペア:

[(1, 20193627728), (2, 10096813864), (4, 5048406932), (8, 2524203466), (16, 1262101733), (19, 1062822512), (38, 531411256), (76, 265705628), (152, 132852814), (304, 66426407), (337, 59921744), (439, 45999152), (449, 44974672), (674, 29960872), (878, 22999576), (898, 22487336), (1348, 14980436), (1756, 11499788), (1796, 11243668), (2696, 7490218), (3512, 5749894), (3592, 5621834), (5392, 3745109), (6403, 3153776), (7024, 2874947), (7184, 2810917), (8341, 2421008), (8531, 2367088), (12806, 1576888), (16682, 1210504), (17062, 1183544), (25612, 788444), (33364, 605252), (34124, 591772), (51224, 394222), (66728, 302626), (68248, 295886), (102448, 197111), (133456, 151313), (136496, 147943)]