214970975

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{311}}^1\times {\mathrm{643}}^1$

素因数の和:1007

約数の個数: 24

約数和(自身を含む): 274065792

約数和(自身を除く): 59094817

約数列:

[1, 5, 25, 43, 215, 311, 643, 1075, 1555, 3215, 7775, 13373, 16075, 27649, 66865, 138245, 199973, 334325, 691225, 999865, 4999325, 8598839, 42994195, 214970975]

約数ペア:

[(1, 214970975), (5, 42994195), (25, 8598839), (43, 4999325), (215, 999865), (311, 691225), (643, 334325), (1075, 199973), (1555, 138245), (3215, 66865), (7775, 27649), (13373, 16075)]