668810060

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{470993}}^1$

素因数の和:471073

約数の個数: 24

約数和(自身を含む): 1424285856

約数和(自身を除く): 755475796

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 470993, 941986, 1883972, 2354965, 4709930, 9419860, 33440503, 66881006, 133762012, 167202515, 334405030, 668810060]

約数ペア:

[(1, 668810060), (2, 334405030), (4, 167202515), (5, 133762012), (10, 66881006), (20, 33440503), (71, 9419860), (142, 4709930), (284, 2354965), (355, 1883972), (710, 941986), (1420, 470993)]