20163729880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{72013321}}^1$

素因数の和:72013339

約数の個数: 32

約数和(自身を含む): 51849591840

約数和(自身を除く): 31685861960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 72013321, 144026642, 288053284, 360066605, 504093247, 576106568, 720133210, 1008186494, 1440266420, 2016372988, 2520466235, 2880532840, 4032745976, 5040932470, 10081864940, 20163729880]

約数ペア:

[(1, 20163729880), (2, 10081864940), (4, 5040932470), (5, 4032745976), (7, 2880532840), (8, 2520466235), (10, 2016372988), (14, 1440266420), (20, 1008186494), (28, 720133210), (35, 576106568), (40, 504093247), (56, 360066605), (70, 288053284), (140, 144026642), (280, 72013321)]