7215725

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1381}}^1$

素因数の和:1421

約数の個数: 24

約数和(自身を含む): 10282080

約数和(自身を除く): 3066355

約数列:

[1, 5, 11, 19, 25, 55, 95, 209, 275, 475, 1045, 1381, 5225, 6905, 15191, 26239, 34525, 75955, 131195, 288629, 379775, 655975, 1443145, 7215725]

約数ペア:

[(1, 7215725), (5, 1443145), (11, 655975), (19, 379775), (25, 288629), (55, 131195), (95, 75955), (209, 34525), (275, 26239), (475, 15191), (1045, 6905), (1381, 5225)]