128610640

素因数分解:

$2^4\times 5^1\times {\mathrm{547}}^1\times {\mathrm{2939}}^1$

素因数の和:3499

約数の個数: 40

約数和(自身を含む): 299668320

約数和(自身を除く): 171057680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 547, 1094, 2188, 2735, 2939, 4376, 5470, 5878, 8752, 10940, 11756, 14695, 21880, 23512, 29390, 43760, 47024, 58780, 117560, 235120, 1607633, 3215266, 6430532, 8038165, 12861064, 16076330, 25722128, 32152660, 64305320, 128610640]

約数ペア:

[(1, 128610640), (2, 64305320), (4, 32152660), (5, 25722128), (8, 16076330), (10, 12861064), (16, 8038165), (20, 6430532), (40, 3215266), (80, 1607633), (547, 235120), (1094, 117560), (2188, 58780), (2735, 47024), (2939, 43760), (4376, 29390), (5470, 23512), (5878, 21880), (8752, 14695), (10940, 11756)]