20685070

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{461}}^1\times {\mathrm{641}}^1$

素因数の和:1116

約数の個数: 32

約数和(自身を含む): 42710976

約数和(自身を除く): 22025906

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 461, 641, 922, 1282, 2305, 3205, 3227, 4487, 4610, 6410, 6454, 8974, 16135, 22435, 32270, 44870, 295501, 591002, 1477505, 2068507, 2955010, 4137014, 10342535, 20685070]

約数ペア:

[(1, 20685070), (2, 10342535), (5, 4137014), (7, 2955010), (10, 2068507), (14, 1477505), (35, 591002), (70, 295501), (461, 44870), (641, 32270), (922, 22435), (1282, 16135), (2305, 8974), (3205, 6454), (3227, 6410), (4487, 4610)]