20883368408

素因数分解:

$2^3\times 7^3\times {\mathrm{29}}^1\times {\mathrm{262433}}^1$

素因数の和:262489

約数の個数: 64

約数和(自身を含む): 47238120000

約数和(自身を除く): 26354751592

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 49, 56, 58, 98, 116, 196, 203, 232, 343, 392, 406, 686, 812, 1372, 1421, 1624, 2744, 2842, 5684, 9947, 11368, 19894, 39788, 79576, 262433, 524866, 1049732, 1837031, 2099464, 3674062, 7348124, 7610557, 12859217, 14696248, 15221114, 25718434, 30442228, 51436868, 53273899, 60884456, 90014519, 102873736, 106547798, 180029038, 213095596, 360058076, 372917293, 426191192, 720116152, 745834586, 1491669172, 2610421051, 2983338344, 5220842102, 10441684204, 20883368408]

約数ペア:

[(1, 20883368408), (2, 10441684204), (4, 5220842102), (7, 2983338344), (8, 2610421051), (14, 1491669172), (28, 745834586), (29, 720116152), (49, 426191192), (56, 372917293), (58, 360058076), (98, 213095596), (116, 180029038), (196, 106547798), (203, 102873736), (232, 90014519), (343, 60884456), (392, 53273899), (406, 51436868), (686, 30442228), (812, 25718434), (1372, 15221114), (1421, 14696248), (1624, 12859217), (2744, 7610557), (2842, 7348124), (5684, 3674062), (9947, 2099464), (11368, 1837031), (19894, 1049732), (39788, 524866), (79576, 262433)]