20005708

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{29}}^2\times {\mathrm{313}}^1$

素因数の和:394

約数の個数: 36

約数和(自身を含む): 38289160

約数和(自身を除く): 18283452

約数列:

[1, 2, 4, 19, 29, 38, 58, 76, 116, 313, 551, 626, 841, 1102, 1252, 1682, 2204, 3364, 5947, 9077, 11894, 15979, 18154, 23788, 31958, 36308, 63916, 172463, 263233, 344926, 526466, 689852, 1052932, 5001427, 10002854, 20005708]

約数ペア:

[(1, 20005708), (2, 10002854), (4, 5001427), (19, 1052932), (29, 689852), (38, 526466), (58, 344926), (76, 263233), (116, 172463), (313, 63916), (551, 36308), (626, 31958), (841, 23788), (1102, 18154), (1252, 15979), (1682, 11894), (2204, 9077), (3364, 5947)]