72140265

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{521}}^1$

素因数の和:730

約数の個数: 48

約数和(自身を含む): 133385616

約数和(自身を除く): 61245351

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 181, 255, 521, 543, 765, 905, 1563, 1629, 2605, 2715, 3077, 4689, 7815, 8145, 8857, 9231, 15385, 23445, 26571, 27693, 44285, 46155, 79713, 94301, 132855, 138465, 282903, 398565, 471505, 848709, 1414515, 1603117, 4243545, 4809351, 8015585, 14428053, 24046755, 72140265]

約数ペア:

[(1, 72140265), (3, 24046755), (5, 14428053), (9, 8015585), (15, 4809351), (17, 4243545), (45, 1603117), (51, 1414515), (85, 848709), (153, 471505), (181, 398565), (255, 282903), (521, 138465), (543, 132855), (765, 94301), (905, 79713), (1563, 46155), (1629, 44285), (2605, 27693), (2715, 26571), (3077, 23445), (4689, 15385), (7815, 9231), (8145, 8857)]