199971945

素因数分解:

$3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1\times {\mathrm{691}}^1$

素因数の和:870

約数の個数: 48

約数和(自身を含む): 356241600

約数和(自身を除く): 156269655

約数列:

[1, 3, 5, 9, 15, 45, 59, 109, 177, 295, 327, 531, 545, 691, 885, 981, 1635, 2073, 2655, 3455, 4905, 6219, 6431, 10365, 19293, 31095, 32155, 40769, 57879, 75319, 96465, 122307, 203845, 225957, 289395, 366921, 376595, 611535, 677871, 1129785, 1834605, 3389355, 4443821, 13331463, 22219105, 39994389, 66657315, 199971945]

約数ペア:

[(1, 199971945), (3, 66657315), (5, 39994389), (9, 22219105), (15, 13331463), (45, 4443821), (59, 3389355), (109, 1834605), (177, 1129785), (295, 677871), (327, 611535), (531, 376595), (545, 366921), (691, 289395), (885, 225957), (981, 203845), (1635, 122307), (2073, 96465), (2655, 75319), (3455, 57879), (4905, 40769), (6219, 32155), (6431, 31095), (10365, 19293)]