306689545

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{193}}^1\times {\mathrm{389}}^1$

素因数の和:649

約数の個数: 32

約数和(自身を含む): 399484800

約数和(自身を除く): 92795255

約数列:

[1, 5, 19, 43, 95, 193, 215, 389, 817, 965, 1945, 3667, 4085, 7391, 8299, 16727, 18335, 36955, 41495, 75077, 83635, 157681, 317813, 375385, 788405, 1426463, 1589065, 3228311, 7132315, 16141555, 61337909, 306689545]

約数ペア:

[(1, 306689545), (5, 61337909), (19, 16141555), (43, 7132315), (95, 3228311), (193, 1589065), (215, 1426463), (389, 788405), (817, 375385), (965, 317813), (1945, 157681), (3667, 83635), (4085, 75077), (7391, 41495), (8299, 36955), (16727, 18335)]