20735562020

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{173}}^1\times {\mathrm{197}}^1\times {\mathrm{1049}}^1$

素因数の和:1457

約数の個数: 96

約数和(自身を含む): 45579996000

約数和(自身を除く): 24844433980

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 173, 197, 290, 346, 394, 580, 692, 788, 865, 985, 1049, 1730, 1970, 2098, 3460, 3940, 4196, 5017, 5245, 5713, 10034, 10490, 11426, 20068, 20980, 22852, 25085, 28565, 30421, 34081, 50170, 57130, 60842, 68162, 100340, 114260, 121684, 136324, 152105, 170405, 181477, 206653, 304210, 340810, 362954, 413306, 608420, 681620, 725908, 826612, 907385, 988349, 1033265, 1814770, 1976698, 2066530, 3629540, 3953396, 4133060, 4941745, 5262833, 5992937, 9883490, 10525666, 11985874, 19766980, 21051332, 23971748, 26314165, 29964685, 35750969, 52628330, 59929370, 71501938, 105256660, 119858740, 143003876, 178754845, 357509690, 715019380, 1036778101, 2073556202, 4147112404, 5183890505, 10367781010, 20735562020]

約数ペア:

[(1, 20735562020), (2, 10367781010), (4, 5183890505), (5, 4147112404), (10, 2073556202), (20, 1036778101), (29, 715019380), (58, 357509690), (116, 178754845), (145, 143003876), (173, 119858740), (197, 105256660), (290, 71501938), (346, 59929370), (394, 52628330), (580, 35750969), (692, 29964685), (788, 26314165), (865, 23971748), (985, 21051332), (1049, 19766980), (1730, 11985874), (1970, 10525666), (2098, 9883490), (3460, 5992937), (3940, 5262833), (4196, 4941745), (5017, 4133060), (5245, 3953396), (5713, 3629540), (10034, 2066530), (10490, 1976698), (11426, 1814770), (20068, 1033265), (20980, 988349), (22852, 907385), (25085, 826612), (28565, 725908), (30421, 681620), (34081, 608420), (50170, 413306), (57130, 362954), (60842, 340810), (68162, 304210), (100340, 206653), (114260, 181477), (121684, 170405), (136324, 152105)]