199965740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{509}}^1\times {\mathrm{1511}}^1$

素因数の和:2042

約数の個数: 48

約数和(自身を含む): 453418560

約数和(自身を除く): 253452820

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 509, 1018, 1511, 2036, 2545, 3022, 5090, 6044, 6617, 7555, 10180, 13234, 15110, 19643, 26468, 30220, 33085, 39286, 66170, 78572, 98215, 132340, 196430, 392860, 769099, 1538198, 3076396, 3845495, 7690990, 9998287, 15381980, 19996574, 39993148, 49991435, 99982870, 199965740]

約数ペア:

[(1, 199965740), (2, 99982870), (4, 49991435), (5, 39993148), (10, 19996574), (13, 15381980), (20, 9998287), (26, 7690990), (52, 3845495), (65, 3076396), (130, 1538198), (260, 769099), (509, 392860), (1018, 196430), (1511, 132340), (2036, 98215), (2545, 78572), (3022, 66170), (5090, 39286), (6044, 33085), (6617, 30220), (7555, 26468), (10180, 19643), (13234, 15110)]