28309435

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{139}}^1$

素因数の和:208

約数の個数: 48

約数和(自身を含む): 44593920

約数和(自身を除く): 16284485

約数列:

[1, 5, 7, 11, 23, 35, 55, 77, 115, 139, 161, 253, 385, 529, 695, 805, 973, 1265, 1529, 1771, 2645, 3197, 3703, 4865, 5819, 7645, 8855, 10703, 15985, 18515, 22379, 29095, 35167, 40733, 53515, 73531, 111895, 175835, 203665, 246169, 367655, 514717, 808841, 1230845, 2573585, 4044205, 5661887, 28309435]

約数ペア:

[(1, 28309435), (5, 5661887), (7, 4044205), (11, 2573585), (23, 1230845), (35, 808841), (55, 514717), (77, 367655), (115, 246169), (139, 203665), (161, 175835), (253, 111895), (385, 73531), (529, 53515), (695, 40733), (805, 35167), (973, 29095), (1265, 22379), (1529, 18515), (1771, 15985), (2645, 10703), (3197, 8855), (3703, 7645), (4865, 5819)]