80961816

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^2\times {\mathrm{19961}}^1$

素因数の和:19996

約数の個数: 48

約数和(自身を含む): 219182760

約数和(自身を除く): 138220944

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 169, 312, 338, 507, 676, 1014, 1352, 2028, 4056, 19961, 39922, 59883, 79844, 119766, 159688, 239532, 259493, 479064, 518986, 778479, 1037972, 1556958, 2075944, 3113916, 3373409, 6227832, 6746818, 10120227, 13493636, 20240454, 26987272, 40480908, 80961816]

約数ペア:

[(1, 80961816), (2, 40480908), (3, 26987272), (4, 20240454), (6, 13493636), (8, 10120227), (12, 6746818), (13, 6227832), (24, 3373409), (26, 3113916), (39, 2075944), (52, 1556958), (78, 1037972), (104, 778479), (156, 518986), (169, 479064), (312, 259493), (338, 239532), (507, 159688), (676, 119766), (1014, 79844), (1352, 59883), (2028, 39922), (4056, 19961)]