13686040

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1$

素因数の和:236

約数の個数: 64

約数和(自身を含む): 32234400

約数和(自身を除く): 18548360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 73, 86, 109, 146, 172, 215, 218, 292, 344, 365, 430, 436, 545, 584, 730, 860, 872, 1090, 1460, 1720, 2180, 2920, 3139, 4360, 4687, 6278, 7957, 9374, 12556, 15695, 15914, 18748, 23435, 25112, 31390, 31828, 37496, 39785, 46870, 62780, 63656, 79570, 93740, 125560, 159140, 187480, 318280, 342151, 684302, 1368604, 1710755, 2737208, 3421510, 6843020, 13686040]

約数ペア:

[(1, 13686040), (2, 6843020), (4, 3421510), (5, 2737208), (8, 1710755), (10, 1368604), (20, 684302), (40, 342151), (43, 318280), (73, 187480), (86, 159140), (109, 125560), (146, 93740), (172, 79570), (215, 63656), (218, 62780), (292, 46870), (344, 39785), (365, 37496), (430, 31828), (436, 31390), (545, 25112), (584, 23435), (730, 18748), (860, 15914), (872, 15695), (1090, 12556), (1460, 9374), (1720, 7957), (2180, 6278), (2920, 4687), (3139, 4360)]