19738030

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{1019}}^1$

素因数の和:1188

約数の個数: 32

約数和(自身を含む): 38556000

約数和(自身を除く): 18817970

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 149, 298, 745, 1019, 1490, 1937, 2038, 3874, 5095, 9685, 10190, 13247, 19370, 26494, 66235, 132470, 151831, 303662, 759155, 1518310, 1973803, 3947606, 9869015, 19738030]

約数ペア:

[(1, 19738030), (2, 9869015), (5, 3947606), (10, 1973803), (13, 1518310), (26, 759155), (65, 303662), (130, 151831), (149, 132470), (298, 66235), (745, 26494), (1019, 19370), (1490, 13247), (1937, 10190), (2038, 9685), (3874, 5095)]