20285940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{557}}^1\times {\mathrm{607}}^1$

素因数の和:1176

約数の個数: 48

約数和(自身を含む): 56996352

約数和(自身を除く): 36710412

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 557, 607, 1114, 1214, 1671, 1821, 2228, 2428, 2785, 3035, 3342, 3642, 5570, 6070, 6684, 7284, 8355, 9105, 11140, 12140, 16710, 18210, 33420, 36420, 338099, 676198, 1014297, 1352396, 1690495, 2028594, 3380990, 4057188, 5071485, 6761980, 10142970, 20285940]

約数ペア:

[(1, 20285940), (2, 10142970), (3, 6761980), (4, 5071485), (5, 4057188), (6, 3380990), (10, 2028594), (12, 1690495), (15, 1352396), (20, 1014297), (30, 676198), (60, 338099), (557, 36420), (607, 33420), (1114, 18210), (1214, 16710), (1671, 12140), (1821, 11140), (2228, 9105), (2428, 8355), (2785, 7284), (3035, 6684), (3342, 6070), (3642, 5570)]