18827575

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3049}}^1$

素因数の和:3091

約数の個数: 24

約数和(自身を含む): 26474000

約数和(自身を除く): 7646425

約数列:

[1, 5, 13, 19, 25, 65, 95, 247, 325, 475, 1235, 3049, 6175, 15245, 39637, 57931, 76225, 198185, 289655, 753103, 990925, 1448275, 3765515, 18827575]

約数ペア:

[(1, 18827575), (5, 3765515), (13, 1448275), (19, 990925), (25, 753103), (65, 289655), (95, 198185), (247, 76225), (325, 57931), (475, 39637), (1235, 15245), (3049, 6175)]