19787525

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{233}}^1$

素因数の和:365

約数の個数: 24

約数和(自身を含む): 25534080

約数和(自身を除く): 5746555

約数列:

[1, 5, 25, 43, 79, 215, 233, 395, 1075, 1165, 1975, 3397, 5825, 10019, 16985, 18407, 50095, 84925, 92035, 250475, 460175, 791501, 3957505, 19787525]

約数ペア:

[(1, 19787525), (5, 3957505), (25, 791501), (43, 460175), (79, 250475), (215, 92035), (233, 84925), (395, 50095), (1075, 18407), (1165, 16985), (1975, 10019), (3397, 5825)]