287412385

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{139}}^1\times {\mathrm{2447}}^1$

素因数の和:2617

約数の個数: 24

約数和(自身を含む): 376306560

約数和(自身を除く): 88894175

約数列:

[1, 5, 13, 65, 139, 169, 695, 845, 1807, 2447, 9035, 12235, 23491, 31811, 117455, 159055, 340133, 413543, 1700665, 2067715, 4421729, 22108645, 57482477, 287412385]

約数ペア:

[(1, 287412385), (5, 57482477), (13, 22108645), (65, 4421729), (139, 2067715), (169, 1700665), (695, 413543), (845, 340133), (1807, 159055), (2447, 117455), (9035, 31811), (12235, 23491)]