19506950

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^2\times {\mathrm{211}}^1$

素因数の和:309

約数の個数: 36

約数和(自身を含む): 37322388

約数和(自身を除く): 17815438

約数列:

[1, 2, 5, 10, 25, 43, 50, 86, 211, 215, 422, 430, 1055, 1075, 1849, 2110, 2150, 3698, 5275, 9073, 9245, 10550, 18146, 18490, 45365, 46225, 90730, 92450, 226825, 390139, 453650, 780278, 1950695, 3901390, 9753475, 19506950]

約数ペア:

[(1, 19506950), (2, 9753475), (5, 3901390), (10, 1950695), (25, 780278), (43, 453650), (50, 390139), (86, 226825), (211, 92450), (215, 90730), (422, 46225), (430, 45365), (1055, 18490), (1075, 18146), (1849, 10550), (2110, 9245), (2150, 9073), (3698, 5275)]