30128945

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{563}}^1$

素因数の和:725

約数の個数: 32

約数和(自身を含む): 45480960

約数和(自身を除く): 15352015

約数列:

[1, 5, 7, 11, 35, 55, 77, 139, 385, 563, 695, 973, 1529, 2815, 3941, 4865, 6193, 7645, 10703, 19705, 30965, 43351, 53515, 78257, 216755, 391285, 547799, 860827, 2738995, 4304135, 6025789, 30128945]

約数ペア:

[(1, 30128945), (5, 6025789), (7, 4304135), (11, 2738995), (35, 860827), (55, 547799), (77, 391285), (139, 216755), (385, 78257), (563, 53515), (695, 43351), (973, 30965), (1529, 19705), (2815, 10703), (3941, 7645), (4865, 6193)]