159456855

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{631}}^1\times {\mathrm{991}}^1$

素因数の和:1647

約数の個数: 32

約数和(自身を含む): 270839808

約数和(自身を除く): 111382953

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 631, 991, 1893, 2973, 3155, 4955, 9465, 10727, 14865, 16847, 32181, 50541, 53635, 84235, 160905, 252705, 625321, 1875963, 3126605, 9379815, 10630457, 31891371, 53152285, 159456855]

約数ペア:

[(1, 159456855), (3, 53152285), (5, 31891371), (15, 10630457), (17, 9379815), (51, 3126605), (85, 1875963), (255, 625321), (631, 252705), (991, 160905), (1893, 84235), (2973, 53635), (3155, 50541), (4955, 32181), (9465, 16847), (10727, 14865)]