20155731670

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{353}}^1\times {\mathrm{401}}^1\times {\mathrm{491}}^1$

素因数の和:1281

約数の個数: 64

約数和(自身を含む): 37808389440

約数和(自身を除く): 17652657770

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 353, 401, 491, 706, 802, 982, 1765, 2005, 2455, 3530, 4010, 4910, 10237, 11629, 14239, 20474, 23258, 28478, 51185, 58145, 71195, 102370, 116290, 141553, 142390, 173323, 196891, 283106, 346646, 393782, 707765, 866615, 984455, 1415530, 1733230, 1968910, 4105037, 5026367, 5709839, 8210074, 10052734, 11419678, 20525185, 25131835, 28549195, 41050370, 50263670, 57098390, 69502523, 139005046, 347512615, 695025230, 2015573167, 4031146334, 10077865835, 20155731670]

約数ペア:

[(1, 20155731670), (2, 10077865835), (5, 4031146334), (10, 2015573167), (29, 695025230), (58, 347512615), (145, 139005046), (290, 69502523), (353, 57098390), (401, 50263670), (491, 41050370), (706, 28549195), (802, 25131835), (982, 20525185), (1765, 11419678), (2005, 10052734), (2455, 8210074), (3530, 5709839), (4010, 5026367), (4910, 4105037), (10237, 1968910), (11629, 1733230), (14239, 1415530), (20474, 984455), (23258, 866615), (28478, 707765), (51185, 393782), (58145, 346646), (71195, 283106), (102370, 196891), (116290, 173323), (141553, 142390)]