71791405

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{1213}}^1$

素因数の和:1333

約数の個数: 32

約数和(自身を含む): 104889600

約数和(自身を除く): 33098195

約数列:

[1, 5, 7, 19, 35, 89, 95, 133, 445, 623, 665, 1213, 1691, 3115, 6065, 8455, 8491, 11837, 23047, 42455, 59185, 107957, 115235, 161329, 539785, 755699, 806645, 2051183, 3778495, 10255915, 14358281, 71791405]

約数ペア:

[(1, 71791405), (5, 14358281), (7, 10255915), (19, 3778495), (35, 2051183), (89, 806645), (95, 755699), (133, 539785), (445, 161329), (623, 115235), (665, 107957), (1213, 59185), (1691, 42455), (3115, 23047), (6065, 11837), (8455, 8491)]