19084120

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{3943}}^1$

素因数の和:3976

約数の個数: 48

約数和(自身を含む): 47209680

約数和(自身を除く): 28125560

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420, 3943, 4840, 7886, 15772, 19715, 31544, 39430, 43373, 78860, 86746, 157720, 173492, 216865, 346984, 433730, 477103, 867460, 954206, 1734920, 1908412, 2385515, 3816824, 4771030, 9542060, 19084120]

約数ペア:

[(1, 19084120), (2, 9542060), (4, 4771030), (5, 3816824), (8, 2385515), (10, 1908412), (11, 1734920), (20, 954206), (22, 867460), (40, 477103), (44, 433730), (55, 346984), (88, 216865), (110, 173492), (121, 157720), (220, 86746), (242, 78860), (440, 43373), (484, 39430), (605, 31544), (968, 19715), (1210, 15772), (2420, 7886), (3943, 4840)]