18045178180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{895987}}^1$

素因数の和:896068

約数の個数: 48

約数和(自身を含む): 40642015680

約数和(自身を除く): 22596837500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 53, 76, 95, 106, 190, 212, 265, 380, 530, 1007, 1060, 2014, 4028, 5035, 10070, 20140, 895987, 1791974, 3583948, 4479935, 8959870, 17023753, 17919740, 34047506, 47487311, 68095012, 85118765, 94974622, 170237530, 189949244, 237436555, 340475060, 474873110, 902258909, 949746220, 1804517818, 3609035636, 4511294545, 9022589090, 18045178180]

約数ペア:

[(1, 18045178180), (2, 9022589090), (4, 4511294545), (5, 3609035636), (10, 1804517818), (19, 949746220), (20, 902258909), (38, 474873110), (53, 340475060), (76, 237436555), (95, 189949244), (106, 170237530), (190, 94974622), (212, 85118765), (265, 68095012), (380, 47487311), (530, 34047506), (1007, 17919740), (1060, 17023753), (2014, 8959870), (4028, 4479935), (5035, 3583948), (10070, 1791974), (20140, 895987)]