28142170

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{727}}^1$

素因数の和:827

約数の個数: 48

約数和(自身を含む): 59754240

約数和(自身を除く): 31612070

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 79, 98, 158, 245, 395, 490, 553, 727, 790, 1106, 1454, 2765, 3635, 3871, 5089, 5530, 7270, 7742, 10178, 19355, 25445, 35623, 38710, 50890, 57433, 71246, 114866, 178115, 287165, 356230, 402031, 574330, 804062, 2010155, 2814217, 4020310, 5628434, 14071085, 28142170]

約数ペア:

[(1, 28142170), (2, 14071085), (5, 5628434), (7, 4020310), (10, 2814217), (14, 2010155), (35, 804062), (49, 574330), (70, 402031), (79, 356230), (98, 287165), (158, 178115), (245, 114866), (395, 71246), (490, 57433), (553, 50890), (727, 38710), (790, 35623), (1106, 25445), (1454, 19355), (2765, 10178), (3635, 7742), (3871, 7270), (5089, 5530)]