20010204820

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{2903}}^1\times {\mathrm{3221}}^1$

素因数の和:6240

約数の個数: 48

約数和(自身を含む): 42441936768

約数和(自身を除く): 22431731948

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140, 2903, 3221, 5806, 6442, 11612, 12884, 14515, 16105, 29030, 32210, 58060, 64420, 310621, 344647, 621242, 689294, 1242484, 1378588, 1553105, 1723235, 3106210, 3446470, 6212420, 6892940, 9350563, 18701126, 37402252, 46752815, 93505630, 187011260, 1000510241, 2001020482, 4002040964, 5002551205, 10005102410, 20010204820]

約数ペア:

[(1, 20010204820), (2, 10005102410), (4, 5002551205), (5, 4002040964), (10, 2001020482), (20, 1000510241), (107, 187011260), (214, 93505630), (428, 46752815), (535, 37402252), (1070, 18701126), (2140, 9350563), (2903, 6892940), (3221, 6212420), (5806, 3446470), (6442, 3106210), (11612, 1723235), (12884, 1553105), (14515, 1378588), (16105, 1242484), (29030, 689294), (32210, 621242), (58060, 344647), (64420, 310621)]