18288880

素因数分解:

$2^4\times 5^1\times {\mathrm{228611}}^1$

素因数の和:228624

約数の個数: 20

約数和(自身を含む): 42521832

約数和(自身を除く): 24232952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 228611, 457222, 914444, 1143055, 1828888, 2286110, 3657776, 4572220, 9144440, 18288880]

約数ペア:

[(1, 18288880), (2, 9144440), (4, 4572220), (5, 3657776), (8, 2286110), (10, 1828888), (16, 1143055), (20, 914444), (40, 457222), (80, 228611)]