8578940

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{137}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 18918144

約数和(自身を除く): 10339204

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 101, 124, 137, 155, 202, 274, 310, 404, 505, 548, 620, 685, 1010, 1370, 2020, 2740, 3131, 4247, 6262, 8494, 12524, 13837, 15655, 16988, 21235, 27674, 31310, 42470, 55348, 62620, 69185, 84940, 138370, 276740, 428947, 857894, 1715788, 2144735, 4289470, 8578940]

約数ペア:

[(1, 8578940), (2, 4289470), (4, 2144735), (5, 1715788), (10, 857894), (20, 428947), (31, 276740), (62, 138370), (101, 84940), (124, 69185), (137, 62620), (155, 55348), (202, 42470), (274, 31310), (310, 27674), (404, 21235), (505, 16988), (548, 15655), (620, 13837), (685, 12524), (1010, 8494), (1370, 6262), (2020, 4247), (2740, 3131)]