26880640

素因数分解:

$2^7\times 5^1\times {\mathrm{97}}^1\times {\mathrm{433}}^1$

素因数の和:549

約数の個数: 64

約数和(自身を含む): 65073960

約数和(自身を除く): 38193320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 97, 128, 160, 194, 320, 388, 433, 485, 640, 776, 866, 970, 1552, 1732, 1940, 2165, 3104, 3464, 3880, 4330, 6208, 6928, 7760, 8660, 12416, 13856, 15520, 17320, 27712, 31040, 34640, 42001, 55424, 62080, 69280, 84002, 138560, 168004, 210005, 277120, 336008, 420010, 672016, 840020, 1344032, 1680040, 2688064, 3360080, 5376128, 6720160, 13440320, 26880640]

約数ペア:

[(1, 26880640), (2, 13440320), (4, 6720160), (5, 5376128), (8, 3360080), (10, 2688064), (16, 1680040), (20, 1344032), (32, 840020), (40, 672016), (64, 420010), (80, 336008), (97, 277120), (128, 210005), (160, 168004), (194, 138560), (320, 84002), (388, 69280), (433, 62080), (485, 55424), (640, 42001), (776, 34640), (866, 31040), (970, 27712), (1552, 17320), (1732, 15520), (1940, 13856), (2165, 12416), (3104, 8660), (3464, 7760), (3880, 6928), (4330, 6208)]