71801990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{4349}}^1$

素因数の和:4496

約数の個数: 32

約数和(自身を含む): 140313600

約数和(自身を除く): 68511610

約数列:

[1, 2, 5, 10, 13, 26, 65, 127, 130, 254, 635, 1270, 1651, 3302, 4349, 8255, 8698, 16510, 21745, 43490, 56537, 113074, 282685, 552323, 565370, 1104646, 2761615, 5523230, 7180199, 14360398, 35900995, 71801990]

約数ペア:

[(1, 71801990), (2, 35900995), (5, 14360398), (10, 7180199), (13, 5523230), (26, 2761615), (65, 1104646), (127, 565370), (130, 552323), (254, 282685), (635, 113074), (1270, 56537), (1651, 43490), (3302, 21745), (4349, 16510), (8255, 8698)]