287398225

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{397}}^1\times {\mathrm{1259}}^1$

素因数の和:1689

約数の個数: 24

約数和(自身を含む): 373101120

約数和(自身を除く): 85702895

約数列:

[1, 5, 23, 25, 115, 397, 575, 1259, 1985, 6295, 9131, 9925, 28957, 31475, 45655, 144785, 228275, 499823, 723925, 2499115, 11495929, 12495575, 57479645, 287398225]

約数ペア:

[(1, 287398225), (5, 57479645), (23, 12495575), (25, 11495929), (115, 2499115), (397, 723925), (575, 499823), (1259, 228275), (1985, 144785), (6295, 45655), (9131, 31475), (9925, 28957)]