856557970

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{197}}^1\times {\mathrm{3989}}^1$

素因数の和:4302

約数の個数: 32

約数和(自身を含む): 1564239600

約数和(自身を除く): 707681630

約数列:

[1, 2, 5, 10, 109, 197, 218, 394, 545, 985, 1090, 1970, 3989, 7978, 19945, 21473, 39890, 42946, 107365, 214730, 434801, 785833, 869602, 1571666, 2174005, 3929165, 4348010, 7858330, 85655797, 171311594, 428278985, 856557970]

約数ペア:

[(1, 856557970), (2, 428278985), (5, 171311594), (10, 85655797), (109, 7858330), (197, 4348010), (218, 3929165), (394, 2174005), (545, 1571666), (985, 869602), (1090, 785833), (1970, 434801), (3989, 214730), (7978, 107365), (19945, 42946), (21473, 39890)]