19964157052

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{239023}}^1$

素因数の和:239210

約数の個数: 48

約数和(自身を含む): 42297687040

約数和(自身を除く): 22333529988

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 157, 266, 314, 532, 628, 1099, 2198, 2983, 4396, 5966, 11932, 20881, 41762, 83524, 239023, 478046, 956092, 1673161, 3346322, 4541437, 6692644, 9082874, 18165748, 31790059, 37526611, 63580118, 75053222, 127160236, 150106444, 262686277, 525372554, 713005609, 1050745108, 1426011218, 2852022436, 4991039263, 9982078526, 19964157052]

約数ペア:

[(1, 19964157052), (2, 9982078526), (4, 4991039263), (7, 2852022436), (14, 1426011218), (19, 1050745108), (28, 713005609), (38, 525372554), (76, 262686277), (133, 150106444), (157, 127160236), (266, 75053222), (314, 63580118), (532, 37526611), (628, 31790059), (1099, 18165748), (2198, 9082874), (2983, 6692644), (4396, 4541437), (5966, 3346322), (11932, 1673161), (20881, 956092), (41762, 478046), (83524, 239023)]