2008305940

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{390721}}^1$

素因数の和:390987

約数の個数: 24

約数和(自身を含む): 4233863592

約数和(自身を除く): 2225557652

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 1028, 1285, 2570, 5140, 390721, 781442, 1562884, 1953605, 3907210, 7814420, 100415297, 200830594, 401661188, 502076485, 1004152970, 2008305940]

約数ペア:

[(1, 2008305940), (2, 1004152970), (4, 502076485), (5, 401661188), (10, 200830594), (20, 100415297), (257, 7814420), (514, 3907210), (1028, 1953605), (1285, 1562884), (2570, 781442), (5140, 390721)]