164709020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{821}}^1\times {\mathrm{1433}}^1$

素因数の和:2270

約数の個数: 48

約数和(自身を含む): 396059328

約数和(自身を除く): 231350308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 821, 1433, 1642, 2866, 3284, 4105, 5732, 5747, 7165, 8210, 10031, 11494, 14330, 16420, 20062, 22988, 28660, 28735, 40124, 50155, 57470, 100310, 114940, 200620, 1176493, 2352986, 4705972, 5882465, 8235451, 11764930, 16470902, 23529860, 32941804, 41177255, 82354510, 164709020]

約数ペア:

[(1, 164709020), (2, 82354510), (4, 41177255), (5, 32941804), (7, 23529860), (10, 16470902), (14, 11764930), (20, 8235451), (28, 5882465), (35, 4705972), (70, 2352986), (140, 1176493), (821, 200620), (1433, 114940), (1642, 100310), (2866, 57470), (3284, 50155), (4105, 40124), (5732, 28735), (5747, 28660), (7165, 22988), (8210, 20062), (10031, 16420), (11494, 14330)]