81310255

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{20507}}^1$

素因数の和:20586

約数の個数: 16

約数和(自身を含む): 106805664

約数和(自身を除く): 25495409

約数列:

[1, 5, 13, 61, 65, 305, 793, 3965, 20507, 102535, 266591, 1250927, 1332955, 6254635, 16262051, 81310255]

約数ペア:

[(1, 81310255), (5, 16262051), (13, 6254635), (61, 1332955), (65, 1250927), (305, 266591), (793, 102535), (3965, 20507)]