20399684745

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{185359}}^1$

素因数の和:185430

約数の個数: 64

約数和(自身を含む): 38436249600

約数和(自身を除く): 18036564855

約数列:

[1, 3, 5, 11, 15, 23, 29, 33, 55, 69, 87, 115, 145, 165, 253, 319, 345, 435, 667, 759, 957, 1265, 1595, 2001, 3335, 3795, 4785, 7337, 10005, 22011, 36685, 110055, 185359, 556077, 926795, 2038949, 2780385, 4263257, 5375411, 6116847, 10194745, 12789771, 16126233, 21316285, 26877055, 30584235, 46895827, 59129521, 63948855, 80631165, 123634453, 140687481, 177388563, 234479135, 295647605, 370903359, 618172265, 703437405, 886942815, 1359978983, 1854516795, 4079936949, 6799894915, 20399684745]

約数ペア:

[(1, 20399684745), (3, 6799894915), (5, 4079936949), (11, 1854516795), (15, 1359978983), (23, 886942815), (29, 703437405), (33, 618172265), (55, 370903359), (69, 295647605), (87, 234479135), (115, 177388563), (145, 140687481), (165, 123634453), (253, 80631165), (319, 63948855), (345, 59129521), (435, 46895827), (667, 30584235), (759, 26877055), (957, 21316285), (1265, 16126233), (1595, 12789771), (2001, 10194745), (3335, 6116847), (3795, 5375411), (4785, 4263257), (7337, 2780385), (10005, 2038949), (22011, 926795), (36685, 556077), (110055, 185359)]