20121479980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{143724857}}^1$

素因数の和:143724873

約数の個数: 24

約数和(自身を含む): 48291552288

約数和(自身を除く): 28170072308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 143724857, 287449714, 574899428, 718624285, 1006073999, 1437248570, 2012147998, 2874497140, 4024295996, 5030369995, 10060739990, 20121479980]

約数ペア:

[(1, 20121479980), (2, 10060739990), (4, 5030369995), (5, 4024295996), (7, 2874497140), (10, 2012147998), (14, 1437248570), (20, 1006073999), (28, 718624285), (35, 574899428), (70, 287449714), (140, 143724857)]