90808880

素因数分解:

$2^4\times 5^1\times {\mathrm{1135111}}^1$

素因数の和:1135124

約数の個数: 20

約数和(自身を含む): 211130832

約数和(自身を除く): 120321952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1135111, 2270222, 4540444, 5675555, 9080888, 11351110, 18161776, 22702220, 45404440, 90808880]

約数ペア:

[(1, 90808880), (2, 45404440), (4, 22702220), (5, 18161776), (8, 11351110), (10, 9080888), (16, 5675555), (20, 4540444), (40, 2270222), (80, 1135111)]