80620436

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{239}}^1\times {\mathrm{499}}^1$

素因数の和:768

約数の個数: 36

約数和(自身を含む): 153720000

約数和(自身を除く): 73099564

約数列:

[1, 2, 4, 13, 26, 52, 169, 239, 338, 478, 499, 676, 956, 998, 1996, 3107, 6214, 6487, 12428, 12974, 25948, 40391, 80782, 84331, 119261, 161564, 168662, 238522, 337324, 477044, 1550393, 3100786, 6201572, 20155109, 40310218, 80620436]

約数ペア:

[(1, 80620436), (2, 40310218), (4, 20155109), (13, 6201572), (26, 3100786), (52, 1550393), (169, 477044), (239, 337324), (338, 238522), (478, 168662), (499, 161564), (676, 119261), (956, 84331), (998, 80782), (1996, 40391), (3107, 25948), (6214, 12974), (6487, 12428)]