30728945

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{27809}}^1$

素因数の和:27844

約数の個数: 16

約数和(自身を含む): 42048720

約数和(自身を除く): 11319775

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 27809, 139045, 361517, 472753, 1807585, 2363765, 6145789, 30728945]

約数ペア:

[(1, 30728945), (5, 6145789), (13, 2363765), (17, 1807585), (65, 472753), (85, 361517), (221, 139045), (1105, 27809)]