30720019

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:195

約数の個数: 32

約数和(自身を含む): 37324800

約数和(自身を除く): 6604781

約数列:

[1, 11, 23, 29, 53, 79, 253, 319, 583, 667, 869, 1219, 1537, 1817, 2291, 4187, 7337, 13409, 16907, 19987, 25201, 35351, 46057, 52693, 96301, 121423, 388861, 579623, 1059311, 1335653, 2792729, 30720019]

約数ペア:

[(1, 30720019), (11, 2792729), (23, 1335653), (29, 1059311), (53, 579623), (79, 388861), (253, 121423), (319, 96301), (583, 52693), (667, 46057), (869, 35351), (1219, 25201), (1537, 19987), (1817, 16907), (2291, 13409), (4187, 7337)]