80143408

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{217781}}^1$

素因数の和:217812

約数の個数: 20

約数和(自身を含む): 162029808

約数和(自身を除く): 81886400

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 217781, 435562, 871124, 1742248, 3484496, 5008963, 10017926, 20035852, 40071704, 80143408]

約数ペア:

[(1, 80143408), (2, 40071704), (4, 20035852), (8, 10017926), (16, 5008963), (23, 3484496), (46, 1742248), (92, 871124), (184, 435562), (368, 217781)]