4018025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{769}}^1$

素因数の和:809

約数の個数: 24

約数和(自身を含む): 5728800

約数和(自身を除く): 1710775

約数列:

[1, 5, 11, 19, 25, 55, 95, 209, 275, 475, 769, 1045, 3845, 5225, 8459, 14611, 19225, 42295, 73055, 160721, 211475, 365275, 803605, 4018025]

約数ペア:

[(1, 4018025), (5, 803605), (11, 365275), (19, 211475), (25, 160721), (55, 73055), (95, 42295), (209, 19225), (275, 14611), (475, 8459), (769, 5225), (1045, 3845)]