161728645

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{167}}^1\times {\mathrm{317}}^1$

素因数の和:549

約数の個数: 32

約数和(自身を含む): 215405568

約数和(自身を除く): 53676923

約数列:

[1, 5, 13, 47, 65, 167, 235, 317, 611, 835, 1585, 2171, 3055, 4121, 7849, 10855, 14899, 20605, 39245, 52939, 74495, 102037, 193687, 264695, 510185, 688207, 968435, 2488133, 3441035, 12440665, 32345729, 161728645]

約数ペア:

[(1, 161728645), (5, 32345729), (13, 12440665), (47, 3441035), (65, 2488133), (167, 968435), (235, 688207), (317, 510185), (611, 264695), (835, 193687), (1585, 102037), (2171, 74495), (3055, 52939), (4121, 39245), (7849, 20605), (10855, 14899)]