80821325

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{1669}}^1$

素因数の和:1841

約数の個数: 24

約数和(自身を含む): 108717000

約数和(自身を除く): 27895675

約数列:

[1, 5, 13, 25, 65, 149, 325, 745, 1669, 1937, 3725, 8345, 9685, 21697, 41725, 48425, 108485, 248681, 542425, 1243405, 3232853, 6217025, 16164265, 80821325]

約数ペア:

[(1, 80821325), (5, 16164265), (13, 6217025), (25, 3232853), (65, 1243405), (149, 542425), (325, 248681), (745, 108485), (1669, 48425), (1937, 41725), (3725, 21697), (8345, 9685)]