256235615

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{167}}^1\times {\mathrm{521}}^1$

素因数の和:743

約数の個数: 32

約数和(自身を含む): 336752640

約数和(自身を除く): 80517025

約数列:

[1, 5, 19, 31, 95, 155, 167, 521, 589, 835, 2605, 2945, 3173, 5177, 9899, 15865, 16151, 25885, 49495, 80755, 87007, 98363, 306869, 435035, 491815, 1534345, 1653133, 2697217, 8265665, 13486085, 51247123, 256235615]

約数ペア:

[(1, 256235615), (5, 51247123), (19, 13486085), (31, 8265665), (95, 2697217), (155, 1653133), (167, 1534345), (521, 491815), (589, 435035), (835, 306869), (2605, 98363), (2945, 87007), (3173, 80755), (5177, 49495), (9899, 25885), (15865, 16151)]