40978360

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{307}}^1$

素因数の和:436

約数の個数: 64

約数和(自身を含む): 95800320

約数和(自身を除く): 54821960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 71, 94, 142, 188, 235, 284, 307, 355, 376, 470, 568, 614, 710, 940, 1228, 1420, 1535, 1880, 2456, 2840, 3070, 3337, 6140, 6674, 12280, 13348, 14429, 16685, 21797, 26696, 28858, 33370, 43594, 57716, 66740, 72145, 87188, 108985, 115432, 133480, 144290, 174376, 217970, 288580, 435940, 577160, 871880, 1024459, 2048918, 4097836, 5122295, 8195672, 10244590, 20489180, 40978360]

約数ペア:

[(1, 40978360), (2, 20489180), (4, 10244590), (5, 8195672), (8, 5122295), (10, 4097836), (20, 2048918), (40, 1024459), (47, 871880), (71, 577160), (94, 435940), (142, 288580), (188, 217970), (235, 174376), (284, 144290), (307, 133480), (355, 115432), (376, 108985), (470, 87188), (568, 72145), (614, 66740), (710, 57716), (940, 43594), (1228, 33370), (1420, 28858), (1535, 26696), (1880, 21797), (2456, 16685), (2840, 14429), (3070, 13348), (3337, 12280), (6140, 6674)]