19938080

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{4297}}^1$

素因数の和:4341

約数の個数: 48

約数和(自身を含む): 48739320

約数和(自身を除く): 28801240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 80, 116, 145, 160, 232, 290, 464, 580, 928, 1160, 2320, 4297, 4640, 8594, 17188, 21485, 34376, 42970, 68752, 85940, 124613, 137504, 171880, 249226, 343760, 498452, 623065, 687520, 996904, 1246130, 1993808, 2492260, 3987616, 4984520, 9969040, 19938080]

約数ペア:

[(1, 19938080), (2, 9969040), (4, 4984520), (5, 3987616), (8, 2492260), (10, 1993808), (16, 1246130), (20, 996904), (29, 687520), (32, 623065), (40, 498452), (58, 343760), (80, 249226), (116, 171880), (145, 137504), (160, 124613), (232, 85940), (290, 68752), (464, 42970), (580, 34376), (928, 21485), (1160, 17188), (2320, 8594), (4297, 4640)]