18115040

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2633}}^1$

素因数の和:2691

約数の個数: 48

約数和(自身を含む): 43808688

約数和(自身を除く): 25693648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 160, 172, 215, 344, 430, 688, 860, 1376, 1720, 2633, 3440, 5266, 6880, 10532, 13165, 21064, 26330, 42128, 52660, 84256, 105320, 113219, 210640, 226438, 421280, 452876, 566095, 905752, 1132190, 1811504, 2264380, 3623008, 4528760, 9057520, 18115040]

約数ペア:

[(1, 18115040), (2, 9057520), (4, 4528760), (5, 3623008), (8, 2264380), (10, 1811504), (16, 1132190), (20, 905752), (32, 566095), (40, 452876), (43, 421280), (80, 226438), (86, 210640), (160, 113219), (172, 105320), (215, 84256), (344, 52660), (430, 42128), (688, 26330), (860, 21064), (1376, 13165), (1720, 10532), (2633, 6880), (3440, 5266)]