1278049790

素因数分解:

$2^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{21433}}^1$

素因数の和:21596

約数の個数: 32

約数和(自身を含む): 2361169440

約数和(自身を除く): 1083119650

約数列:

[1, 2, 5, 10, 67, 89, 134, 178, 335, 445, 670, 890, 5963, 11926, 21433, 29815, 42866, 59630, 107165, 214330, 1436011, 1907537, 2872022, 3815074, 7180055, 9537685, 14360110, 19075370, 127804979, 255609958, 639024895, 1278049790]

約数ペア:

[(1, 1278049790), (2, 639024895), (5, 255609958), (10, 127804979), (67, 19075370), (89, 14360110), (134, 9537685), (178, 7180055), (335, 3815074), (445, 2872022), (670, 1907537), (890, 1436011), (5963, 214330), (11926, 107165), (21433, 59630), (29815, 42866)]