80910440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{11969}}^1$

素因数の和:12006

約数の個数: 48

約数和(自身を含む): 197145900

約数和(自身を除く): 116235460

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 3380, 6760, 11969, 23938, 47876, 59845, 95752, 119690, 155597, 239380, 311194, 478760, 622388, 777985, 1244776, 1555970, 2022761, 3111940, 4045522, 6223880, 8091044, 10113805, 16182088, 20227610, 40455220, 80910440]

約数ペア:

[(1, 80910440), (2, 40455220), (4, 20227610), (5, 16182088), (8, 10113805), (10, 8091044), (13, 6223880), (20, 4045522), (26, 3111940), (40, 2022761), (52, 1555970), (65, 1244776), (104, 777985), (130, 622388), (169, 478760), (260, 311194), (338, 239380), (520, 155597), (676, 119690), (845, 95752), (1352, 59845), (1690, 47876), (3380, 23938), (6760, 11969)]