55158940

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1\times {\mathrm{491}}^1$

素因数の和:678

約数の個数: 48

約数和(自身を含む): 119768544

約数和(自身を除く): 64609604

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 137, 164, 205, 274, 410, 491, 548, 685, 820, 982, 1370, 1964, 2455, 2740, 4910, 5617, 9820, 11234, 20131, 22468, 28085, 40262, 56170, 67267, 80524, 100655, 112340, 134534, 201310, 269068, 336335, 402620, 672670, 1345340, 2757947, 5515894, 11031788, 13789735, 27579470, 55158940]

約数ペア:

[(1, 55158940), (2, 27579470), (4, 13789735), (5, 11031788), (10, 5515894), (20, 2757947), (41, 1345340), (82, 672670), (137, 402620), (164, 336335), (205, 269068), (274, 201310), (410, 134534), (491, 112340), (548, 100655), (685, 80524), (820, 67267), (982, 56170), (1370, 40262), (1964, 28085), (2455, 22468), (2740, 20131), (4910, 11234), (5617, 9820)]