20107074080

素因数分解:

$2^5\times 5^1\times {\mathrm{1997}}^1\times {\mathrm{62929}}^1$

素因数の和:64941

約数の個数: 48

約数和(自身を含む): 47527504920

約数和(自身を除く): 27420430840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 1997, 3994, 7988, 9985, 15976, 19970, 31952, 39940, 62929, 63904, 79880, 125858, 159760, 251716, 314645, 319520, 503432, 629290, 1006864, 1258580, 2013728, 2517160, 5034320, 10068640, 125669213, 251338426, 502676852, 628346065, 1005353704, 1256692130, 2010707408, 2513384260, 4021414816, 5026768520, 10053537040, 20107074080]

約数ペア:

[(1, 20107074080), (2, 10053537040), (4, 5026768520), (5, 4021414816), (8, 2513384260), (10, 2010707408), (16, 1256692130), (20, 1005353704), (32, 628346065), (40, 502676852), (80, 251338426), (160, 125669213), (1997, 10068640), (3994, 5034320), (7988, 2517160), (9985, 2013728), (15976, 1258580), (19970, 1006864), (31952, 629290), (39940, 503432), (62929, 319520), (63904, 314645), (79880, 251716), (125858, 159760)]