720516987

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{487}}^1\times {\mathrm{3823}}^1$

素因数の和:4359

約数の個数: 24

約数和(自身を含む): 1067416064

約数和(自身を除く): 346899077

約数列:

[1, 3, 9, 43, 129, 387, 487, 1461, 3823, 4383, 11469, 20941, 34407, 62823, 164389, 188469, 493167, 1479501, 1861801, 5585403, 16756209, 80057443, 240172329, 720516987]

約数ペア:

[(1, 720516987), (3, 240172329), (9, 80057443), (43, 16756209), (129, 5585403), (387, 1861801), (487, 1479501), (1461, 493167), (3823, 188469), (4383, 164389), (11469, 62823), (20941, 34407)]