19489420

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{7673}}^1$

素因数の和:7809

約数の個数: 24

約数和(自身を含む): 41255424

約数和(自身を除く): 21766004

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 508, 635, 1270, 2540, 7673, 15346, 30692, 38365, 76730, 153460, 974471, 1948942, 3897884, 4872355, 9744710, 19489420]

約数ペア:

[(1, 19489420), (2, 9744710), (4, 4872355), (5, 3897884), (10, 1948942), (20, 974471), (127, 153460), (254, 76730), (508, 38365), (635, 30692), (1270, 15346), (2540, 7673)]