156720925420

素因数分解:

$2^2\times 5^1\times {\mathrm{189997}}^1\times {\mathrm{41243}}^1$

素因数の和:231249

約数の個数: 24

約数和(自身を含む): 329123655504

約数和(自身を除く): 172402730084

約数列:

[1, 2, 4, 5, 10, 20, 41243, 82486, 164972, 189997, 206215, 379994, 412430, 759988, 824860, 949985, 1899970, 3799940, 7836046271, 15672092542, 31344185084, 39180231355, 78360462710, 156720925420]

約数ペア:

[(1, 156720925420), (2, 78360462710), (4, 39180231355), (5, 31344185084), (10, 15672092542), (20, 7836046271), (41243, 3799940), (82486, 1899970), (164972, 949985), (189997, 824860), (206215, 759988), (379994, 412430)]