15679966520

素因数分解:

$2^3\times 5^1\times {\mathrm{643}}^1\times {\mathrm{609641}}^1$

素因数の和:610295

約数の個数: 32

約数和(自身を含む): 35334850320

約数和(自身を除く): 19654883800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 643, 1286, 2572, 3215, 5144, 6430, 12860, 25720, 609641, 1219282, 2438564, 3048205, 4877128, 6096410, 12192820, 24385640, 391999163, 783998326, 1567996652, 1959995815, 3135993304, 3919991630, 7839983260, 15679966520]

約数ペア:

[(1, 15679966520), (2, 7839983260), (4, 3919991630), (5, 3135993304), (8, 1959995815), (10, 1567996652), (20, 783998326), (40, 391999163), (643, 24385640), (1286, 12192820), (2572, 6096410), (3215, 4877128), (5144, 3048205), (6430, 2438564), (12860, 1219282), (25720, 609641)]