816802025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{37511}}^1$

素因数の和:37601

約数の個数: 24

約数和(自身を含む): 1107054144

約数和(自身を除く): 290252119

約数列:

[1, 5, 13, 25, 65, 67, 325, 335, 871, 1675, 4355, 21775, 37511, 187555, 487643, 937775, 2438215, 2513237, 12191075, 12566185, 32672081, 62830925, 163360405, 816802025]

約数ペア:

[(1, 816802025), (5, 163360405), (13, 62830925), (25, 32672081), (65, 12566185), (67, 12191075), (325, 2513237), (335, 2438215), (871, 937775), (1675, 487643), (4355, 187555), (21775, 37511)]