20657670784

素因数分解:

$2^7\times {\mathrm{503}}^1\times {\mathrm{320851}}^1$

素因数の和:321368

約数の個数: 32

約数和(自身を含む): 41235899040

約数和(自身を除く): 20578228256

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 503, 1006, 2012, 4024, 8048, 16096, 32192, 64384, 320851, 641702, 1283404, 2566808, 5133616, 10267232, 20534464, 41068928, 161388053, 322776106, 645552212, 1291104424, 2582208848, 5164417696, 10328835392, 20657670784]

約数ペア:

[(1, 20657670784), (2, 10328835392), (4, 5164417696), (8, 2582208848), (16, 1291104424), (32, 645552212), (64, 322776106), (128, 161388053), (503, 41068928), (1006, 20534464), (2012, 10267232), (4024, 5133616), (8048, 2566808), (16096, 1283404), (32192, 641702), (64384, 320851)]