180841520

素因数分解:

$2^4\times 5^1\times {\mathrm{2260519}}^1$

素因数の和:2260532

約数の個数: 20

約数和(自身を含む): 420456720

約数和(自身を除く): 239615200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2260519, 4521038, 9042076, 11302595, 18084152, 22605190, 36168304, 45210380, 90420760, 180841520]

約数ペア:

[(1, 180841520), (2, 90420760), (4, 45210380), (5, 36168304), (8, 22605190), (10, 18084152), (16, 11302595), (20, 9042076), (40, 4521038), (80, 2260519)]