8167940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{271}}^1$

素因数の和:428

約数の個数: 48

約数和(自身を含む): 18918144

約数和(自身を除く): 10750204

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 137, 220, 271, 274, 542, 548, 685, 1084, 1355, 1370, 1507, 2710, 2740, 2981, 3014, 5420, 5962, 6028, 7535, 11924, 14905, 15070, 29810, 30140, 37127, 59620, 74254, 148508, 185635, 371270, 408397, 742540, 816794, 1633588, 2041985, 4083970, 8167940]

約数ペア:

[(1, 8167940), (2, 4083970), (4, 2041985), (5, 1633588), (10, 816794), (11, 742540), (20, 408397), (22, 371270), (44, 185635), (55, 148508), (110, 74254), (137, 59620), (220, 37127), (271, 30140), (274, 29810), (542, 15070), (548, 14905), (685, 11924), (1084, 7535), (1355, 6028), (1370, 5962), (1507, 5420), (2710, 3014), (2740, 2981)]