201919795

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{30851}}^1$

素因数の和:30891

約数の個数: 32

約数和(自身を含む): 319873536

約数和(自身を除く): 117953741

約数列:

[1, 5, 7, 11, 17, 35, 55, 77, 85, 119, 187, 385, 595, 935, 1309, 6545, 30851, 154255, 215957, 339361, 524467, 1079785, 1696805, 2375527, 2622335, 3671269, 5769137, 11877635, 18356345, 28845685, 40383959, 201919795]

約数ペア:

[(1, 201919795), (5, 40383959), (7, 28845685), (11, 18356345), (17, 11877635), (35, 5769137), (55, 3671269), (77, 2622335), (85, 2375527), (119, 1696805), (187, 1079785), (385, 524467), (595, 339361), (935, 215957), (1309, 154255), (6545, 30851)]