20004780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{11497}}^1$

素因数の和:11538

約数の個数: 48

約数和(自身を含む): 57949920

約数和(自身を除く): 37945140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 58, 60, 87, 116, 145, 174, 290, 348, 435, 580, 870, 1740, 11497, 22994, 34491, 45988, 57485, 68982, 114970, 137964, 172455, 229940, 333413, 344910, 666826, 689820, 1000239, 1333652, 1667065, 2000478, 3334130, 4000956, 5001195, 6668260, 10002390, 20004780]

約数ペア:

[(1, 20004780), (2, 10002390), (3, 6668260), (4, 5001195), (5, 4000956), (6, 3334130), (10, 2000478), (12, 1667065), (15, 1333652), (20, 1000239), (29, 689820), (30, 666826), (58, 344910), (60, 333413), (87, 229940), (116, 172455), (145, 137964), (174, 114970), (290, 68982), (348, 57485), (435, 45988), (580, 34491), (870, 22994), (1740, 11497)]