1968021220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{388937}}^1$

素因数の和:388980

約数の個数: 48

約数和(自身を含む): 4704594048

約数和(自身を除く): 2736572828

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 220, 230, 253, 460, 506, 1012, 1265, 2530, 5060, 388937, 777874, 1555748, 1944685, 3889370, 4278307, 7778740, 8556614, 8945551, 17113228, 17891102, 21391535, 35782204, 42783070, 44727755, 85566140, 89455510, 98401061, 178911020, 196802122, 393604244, 492005305, 984010610, 1968021220]

約数ペア:

[(1, 1968021220), (2, 984010610), (4, 492005305), (5, 393604244), (10, 196802122), (11, 178911020), (20, 98401061), (22, 89455510), (23, 85566140), (44, 44727755), (46, 42783070), (55, 35782204), (92, 21391535), (110, 17891102), (115, 17113228), (220, 8945551), (230, 8556614), (253, 7778740), (460, 4278307), (506, 3889370), (1012, 1944685), (1265, 1555748), (2530, 777874), (5060, 388937)]