20804932480

素因数分解:

$2^7\times 5^1\times {\mathrm{97}}^1\times {\mathrm{335131}}^1$

素因数の和:335247

約数の個数: 64

約数和(自身を含む): 50249692080

約数和(自身を除く): 29444759600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 97, 128, 160, 194, 320, 388, 485, 640, 776, 970, 1552, 1940, 3104, 3880, 6208, 7760, 12416, 15520, 31040, 62080, 335131, 670262, 1340524, 1675655, 2681048, 3351310, 5362096, 6702620, 10724192, 13405240, 21448384, 26810480, 32507707, 42896768, 53620960, 65015414, 107241920, 130030828, 162538535, 214483840, 260061656, 325077070, 520123312, 650154140, 1040246624, 1300308280, 2080493248, 2600616560, 4160986496, 5201233120, 10402466240, 20804932480]

約数ペア:

[(1, 20804932480), (2, 10402466240), (4, 5201233120), (5, 4160986496), (8, 2600616560), (10, 2080493248), (16, 1300308280), (20, 1040246624), (32, 650154140), (40, 520123312), (64, 325077070), (80, 260061656), (97, 214483840), (128, 162538535), (160, 130030828), (194, 107241920), (320, 65015414), (388, 53620960), (485, 42896768), (640, 32507707), (776, 26810480), (970, 21448384), (1552, 13405240), (1940, 10724192), (3104, 6702620), (3880, 5362096), (6208, 3351310), (7760, 2681048), (12416, 1675655), (15520, 1340524), (31040, 670262), (62080, 335131)]