80839312

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{117499}}^1$

素因数の和:117550

約数の個数: 20

約数和(自身を含む): 160270000

約数和(自身を除く): 79430688

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 117499, 234998, 469996, 939992, 1879984, 5052457, 10104914, 20209828, 40419656, 80839312]

約数ペア:

[(1, 80839312), (2, 40419656), (4, 20209828), (8, 10104914), (16, 5052457), (43, 1879984), (86, 939992), (172, 469996), (344, 234998), (688, 117499)]