129788260

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{132437}}^1$

素因数の和:132460

約数の個数: 36

約数和(自身を含む): 317056572

約数和(自身を除く): 187268312

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 132437, 264874, 529748, 662185, 927059, 1324370, 1854118, 2648740, 3708236, 4635295, 6489413, 9270590, 12978826, 18541180, 25957652, 32447065, 64894130, 129788260]

約数ペア:

[(1, 129788260), (2, 64894130), (4, 32447065), (5, 25957652), (7, 18541180), (10, 12978826), (14, 9270590), (20, 6489413), (28, 4635295), (35, 3708236), (49, 2648740), (70, 1854118), (98, 1324370), (140, 927059), (196, 662185), (245, 529748), (490, 264874), (980, 132437)]