180120220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{12491}}^1$

素因数の和:12610

約数の個数: 48

約数和(自身を含む): 436520448

約数和(自身を除く): 256400228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 103, 140, 206, 412, 515, 721, 1030, 1442, 2060, 2884, 3605, 7210, 12491, 14420, 24982, 49964, 62455, 87437, 124910, 174874, 249820, 349748, 437185, 874370, 1286573, 1748740, 2573146, 5146292, 6432865, 9006011, 12865730, 18012022, 25731460, 36024044, 45030055, 90060110, 180120220]

約数ペア:

[(1, 180120220), (2, 90060110), (4, 45030055), (5, 36024044), (7, 25731460), (10, 18012022), (14, 12865730), (20, 9006011), (28, 6432865), (35, 5146292), (70, 2573146), (103, 1748740), (140, 1286573), (206, 874370), (412, 437185), (515, 349748), (721, 249820), (1030, 174874), (1442, 124910), (2060, 87437), (2884, 62455), (3605, 49964), (7210, 24982), (12491, 14420)]