28131290

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{67}}^1\times {\mathrm{347}}^1$

素因数の和:443

約数の個数: 48

約数和(自身を含む): 56651616

約数和(自身を除く): 28520326

約数列:

[1, 2, 5, 10, 11, 22, 55, 67, 110, 121, 134, 242, 335, 347, 605, 670, 694, 737, 1210, 1474, 1735, 3470, 3685, 3817, 7370, 7634, 8107, 16214, 19085, 23249, 38170, 40535, 41987, 46498, 81070, 83974, 116245, 209935, 232490, 255739, 419870, 511478, 1278695, 2557390, 2813129, 5626258, 14065645, 28131290]

約数ペア:

[(1, 28131290), (2, 14065645), (5, 5626258), (10, 2813129), (11, 2557390), (22, 1278695), (55, 511478), (67, 419870), (110, 255739), (121, 232490), (134, 209935), (242, 116245), (335, 83974), (347, 81070), (605, 46498), (670, 41987), (694, 40535), (737, 38170), (1210, 23249), (1474, 19085), (1735, 16214), (3470, 8107), (3685, 7634), (3817, 7370)]