19676140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{5261}}^1$

素因数の和:5298

約数の個数: 48

約数和(自身を含む): 47736864

約数和(自身を除く): 28060724

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 220, 340, 374, 748, 935, 1870, 3740, 5261, 10522, 21044, 26305, 52610, 57871, 89437, 105220, 115742, 178874, 231484, 289355, 357748, 447185, 578710, 894370, 983807, 1157420, 1788740, 1967614, 3935228, 4919035, 9838070, 19676140]

約数ペア:

[(1, 19676140), (2, 9838070), (4, 4919035), (5, 3935228), (10, 1967614), (11, 1788740), (17, 1157420), (20, 983807), (22, 894370), (34, 578710), (44, 447185), (55, 357748), (68, 289355), (85, 231484), (110, 178874), (170, 115742), (187, 105220), (220, 89437), (340, 57871), (374, 52610), (748, 26305), (935, 21044), (1870, 10522), (3740, 5261)]