20565372968

素因数分解:

$2^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{408497}}^1$

素因数の和:408570

約数の個数: 64

約数和(自身を含む): 47058969600

約数和(自身を除く): 26493596632

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 31, 56, 58, 62, 116, 124, 203, 217, 232, 248, 406, 434, 812, 868, 899, 1624, 1736, 1798, 3596, 6293, 7192, 12586, 25172, 50344, 408497, 816994, 1633988, 2859479, 3267976, 5718958, 11437916, 11846413, 12663407, 22875832, 23692826, 25326814, 47385652, 50653628, 82924891, 88643849, 94771304, 101307256, 165849782, 177287698, 331699564, 354575396, 367238803, 663399128, 709150792, 734477606, 1468955212, 2570671621, 2937910424, 5141343242, 10282686484, 20565372968]

約数ペア:

[(1, 20565372968), (2, 10282686484), (4, 5141343242), (7, 2937910424), (8, 2570671621), (14, 1468955212), (28, 734477606), (29, 709150792), (31, 663399128), (56, 367238803), (58, 354575396), (62, 331699564), (116, 177287698), (124, 165849782), (203, 101307256), (217, 94771304), (232, 88643849), (248, 82924891), (406, 50653628), (434, 47385652), (812, 25326814), (868, 23692826), (899, 22875832), (1624, 12663407), (1736, 11846413), (1798, 11437916), (3596, 5718958), (6293, 3267976), (7192, 2859479), (12586, 1633988), (25172, 816994), (50344, 408497)]