680990398

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^2\times {\mathrm{16741}}^1$

素因数の和:16840

約数の個数: 24

約数和(自身を含む): 1140933816

約数和(自身を除く): 459943418

約数列:

[1, 2, 11, 22, 43, 86, 473, 946, 1849, 3698, 16741, 20339, 33482, 40678, 184151, 368302, 719863, 1439726, 7918493, 15836986, 30954109, 61908218, 340495199, 680990398]

約数ペア:

[(1, 680990398), (2, 340495199), (11, 61908218), (22, 30954109), (43, 15836986), (86, 7918493), (473, 1439726), (946, 719863), (1849, 368302), (3698, 184151), (16741, 40678), (20339, 33482)]