20165074615

素因数分解:

$5^1\times 7^4\times {\mathrm{1679723}}^1$

素因数の和:1679756

約数の個数: 20

約数和(自身を含む): 28229441544

約数和(自身を除く): 8064366929

約数列:

[1, 5, 7, 35, 49, 245, 343, 1715, 2401, 12005, 1679723, 8398615, 11758061, 58790305, 82306427, 411532135, 576144989, 2880724945, 4033014923, 20165074615]

約数ペア:

[(1, 20165074615), (5, 4033014923), (7, 2880724945), (35, 576144989), (49, 411532135), (245, 82306427), (343, 58790305), (1715, 11758061), (2401, 8398615), (12005, 1679723)]