81073020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{193031}}^1$

素因数の和:193050

約数の個数: 48

約数和(自身を含む): 259435008

約数和(自身を除く): 178361988

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 193031, 386062, 579093, 772124, 965155, 1158186, 1351217, 1930310, 2316372, 2702434, 2895465, 3860620, 4053651, 5404868, 5790930, 6756085, 8107302, 11581860, 13512170, 16214604, 20268255, 27024340, 40536510, 81073020]

約数ペア:

[(1, 81073020), (2, 40536510), (3, 27024340), (4, 20268255), (5, 16214604), (6, 13512170), (7, 11581860), (10, 8107302), (12, 6756085), (14, 5790930), (15, 5404868), (20, 4053651), (21, 3860620), (28, 2895465), (30, 2702434), (35, 2316372), (42, 1930310), (60, 1351217), (70, 1158186), (84, 965155), (105, 772124), (140, 579093), (210, 386062), (420, 193031)]