208176980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{6907}}^1$

素因数の和:7064

約数の個数: 48

約数和(自身を含む): 480465216

約数和(自身を除く): 272288236

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 137, 220, 274, 548, 685, 1370, 1507, 2740, 3014, 6028, 6907, 7535, 13814, 15070, 27628, 30140, 34535, 69070, 75977, 138140, 151954, 303908, 379885, 759770, 946259, 1519540, 1892518, 3785036, 4731295, 9462590, 10408849, 18925180, 20817698, 41635396, 52044245, 104088490, 208176980]

約数ペア:

[(1, 208176980), (2, 104088490), (4, 52044245), (5, 41635396), (10, 20817698), (11, 18925180), (20, 10408849), (22, 9462590), (44, 4731295), (55, 3785036), (110, 1892518), (137, 1519540), (220, 946259), (274, 759770), (548, 379885), (685, 303908), (1370, 151954), (1507, 138140), (2740, 75977), (3014, 69070), (6028, 34535), (6907, 30140), (7535, 27628), (13814, 15070)]