19941850

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{809}}^1$

素因数の和:867

約数の個数: 48

約数和(自身を含む): 40678200

約数和(自身を除く): 20736350

約数列:

[1, 2, 5, 10, 17, 25, 29, 34, 50, 58, 85, 145, 170, 290, 425, 493, 725, 809, 850, 986, 1450, 1618, 2465, 4045, 4930, 8090, 12325, 13753, 20225, 23461, 24650, 27506, 40450, 46922, 68765, 117305, 137530, 234610, 343825, 398837, 586525, 687650, 797674, 1173050, 1994185, 3988370, 9970925, 19941850]

約数ペア:

[(1, 19941850), (2, 9970925), (5, 3988370), (10, 1994185), (17, 1173050), (25, 797674), (29, 687650), (34, 586525), (50, 398837), (58, 343825), (85, 234610), (145, 137530), (170, 117305), (290, 68765), (425, 46922), (493, 40450), (725, 27506), (809, 24650), (850, 23461), (986, 20225), (1450, 13753), (1618, 12325), (2465, 8090), (4045, 4930)]