20556760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{73417}}^1$

素因数の和:73435

約数の個数: 32

約数和(自身を含む): 52860960

約数和(自身を除く): 32304200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 73417, 146834, 293668, 367085, 513919, 587336, 734170, 1027838, 1468340, 2055676, 2569595, 2936680, 4111352, 5139190, 10278380, 20556760]

約数ペア:

[(1, 20556760), (2, 10278380), (4, 5139190), (5, 4111352), (7, 2936680), (8, 2569595), (10, 2055676), (14, 1468340), (20, 1027838), (28, 734170), (35, 587336), (40, 513919), (56, 367085), (70, 293668), (140, 146834), (280, 73417)]