278320405

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{199}}^1\times {\mathrm{431}}^1$

素因数の和:705

約数の個数: 32

約数和(自身を含む): 373248000

約数和(自身を除く): 94927595

約数列:

[1, 5, 11, 55, 59, 199, 295, 431, 649, 995, 2155, 2189, 3245, 4741, 10945, 11741, 23705, 25429, 58705, 85769, 127145, 129151, 279719, 428845, 645755, 943459, 1398595, 4717295, 5060371, 25301855, 55664081, 278320405]

約数ペア:

[(1, 278320405), (5, 55664081), (11, 25301855), (55, 5060371), (59, 4717295), (199, 1398595), (295, 943459), (431, 645755), (649, 428845), (995, 279719), (2155, 129151), (2189, 127145), (3245, 85769), (4741, 58705), (10945, 25429), (11741, 23705)]