19992950

素因数分解:

$2^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1$

素因数の和:257

約数の個数: 48

約数和(自身を含む): 38930544

約数和(自身を除く): 18937594

約数列:

[1, 2, 5, 10, 25, 37, 50, 74, 101, 107, 185, 202, 214, 370, 505, 535, 925, 1010, 1070, 1850, 2525, 2675, 3737, 3959, 5050, 5350, 7474, 7918, 10807, 18685, 19795, 21614, 37370, 39590, 54035, 93425, 98975, 108070, 186850, 197950, 270175, 399859, 540350, 799718, 1999295, 3998590, 9996475, 19992950]

約数ペア:

[(1, 19992950), (2, 9996475), (5, 3998590), (10, 1999295), (25, 799718), (37, 540350), (50, 399859), (74, 270175), (101, 197950), (107, 186850), (185, 108070), (202, 98975), (214, 93425), (370, 54035), (505, 39590), (535, 37370), (925, 21614), (1010, 19795), (1070, 18685), (1850, 10807), (2525, 7918), (2675, 7474), (3737, 5350), (3959, 5050)]