19778710

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{6571}}^1$

素因数の和:6628

約数の個数: 32

約数和(自身を含む): 41640192

約数和(自身を除く): 21861482

約数列:

[1, 2, 5, 7, 10, 14, 35, 43, 70, 86, 215, 301, 430, 602, 1505, 3010, 6571, 13142, 32855, 45997, 65710, 91994, 229985, 282553, 459970, 565106, 1412765, 1977871, 2825530, 3955742, 9889355, 19778710]

約数ペア:

[(1, 19778710), (2, 9889355), (5, 3955742), (7, 2825530), (10, 1977871), (14, 1412765), (35, 565106), (43, 459970), (70, 282553), (86, 229985), (215, 91994), (301, 65710), (430, 45997), (602, 32855), (1505, 13142), (3010, 6571)]