161733340

素因数分解:

$2^2\times 5^1\times {\mathrm{997}}^1\times {\mathrm{8111}}^1$

素因数の和:9117

約数の個数: 24

約数和(自身を含む): 340022592

約数和(自身を除く): 178289252

約数列:

[1, 2, 4, 5, 10, 20, 997, 1994, 3988, 4985, 8111, 9970, 16222, 19940, 32444, 40555, 81110, 162220, 8086667, 16173334, 32346668, 40433335, 80866670, 161733340]

約数ペア:

[(1, 161733340), (2, 80866670), (4, 40433335), (5, 32346668), (10, 16173334), (20, 8086667), (997, 162220), (1994, 81110), (3988, 40555), (4985, 32444), (8111, 19940), (9970, 16222)]