2017978220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{887}}^1\times {\mathrm{5987}}^1$

素因数の和:6902

約数の個数: 48

約数和(自身を含む): 4466568960

約数和(自身を除く): 2448590740

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 887, 1774, 3548, 4435, 5987, 8870, 11974, 16853, 17740, 23948, 29935, 33706, 59870, 67412, 84265, 113753, 119740, 168530, 227506, 337060, 455012, 568765, 1137530, 2275060, 5310469, 10620938, 21241876, 26552345, 53104690, 100898911, 106209380, 201797822, 403595644, 504494555, 1008989110, 2017978220]

約数ペア:

[(1, 2017978220), (2, 1008989110), (4, 504494555), (5, 403595644), (10, 201797822), (19, 106209380), (20, 100898911), (38, 53104690), (76, 26552345), (95, 21241876), (190, 10620938), (380, 5310469), (887, 2275060), (1774, 1137530), (3548, 568765), (4435, 455012), (5987, 337060), (8870, 227506), (11974, 168530), (16853, 119740), (17740, 113753), (23948, 84265), (29935, 67412), (33706, 59870)]