20164280

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{17383}}^1$

素因数の和:17423

約数の個数: 32

約数和(自身を含む): 46936800

約数和(自身を除く): 26772520

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 17383, 34766, 69532, 86915, 139064, 173830, 347660, 504107, 695320, 1008214, 2016428, 2520535, 4032856, 5041070, 10082140, 20164280]

約数ペア:

[(1, 20164280), (2, 10082140), (4, 5041070), (5, 4032856), (8, 2520535), (10, 2016428), (20, 1008214), (29, 695320), (40, 504107), (58, 347660), (116, 173830), (145, 139064), (232, 86915), (290, 69532), (580, 34766), (1160, 17383)]