163964440

素因数分解:

$2^3\times 5^1\times {\mathrm{347}}^1\times {\mathrm{11813}}^1$

素因数の和:12171

約数の個数: 32

約数和(自身を含む): 370014480

約数和(自身を除く): 206050040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 347, 694, 1388, 1735, 2776, 3470, 6940, 11813, 13880, 23626, 47252, 59065, 94504, 118130, 236260, 472520, 4099111, 8198222, 16396444, 20495555, 32792888, 40991110, 81982220, 163964440]

約数ペア:

[(1, 163964440), (2, 81982220), (4, 40991110), (5, 32792888), (8, 20495555), (10, 16396444), (20, 8198222), (40, 4099111), (347, 472520), (694, 236260), (1388, 118130), (1735, 94504), (2776, 59065), (3470, 47252), (6940, 23626), (11813, 13880)]