77857520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1741}}^1$

素因数の和:1810

約数の個数: 80

約数和(自身を含む): 199591392

約数和(自身を除く): 121733872

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 43, 52, 65, 80, 86, 104, 130, 172, 208, 215, 260, 344, 430, 520, 559, 688, 860, 1040, 1118, 1720, 1741, 2236, 2795, 3440, 3482, 4472, 5590, 6964, 8705, 8944, 11180, 13928, 17410, 22360, 22633, 27856, 34820, 44720, 45266, 69640, 74863, 90532, 113165, 139280, 149726, 181064, 226330, 299452, 362128, 374315, 452660, 598904, 748630, 905320, 973219, 1197808, 1497260, 1810640, 1946438, 2994520, 3892876, 4866095, 5989040, 7785752, 9732190, 15571504, 19464380, 38928760, 77857520]

約数ペア:

[(1, 77857520), (2, 38928760), (4, 19464380), (5, 15571504), (8, 9732190), (10, 7785752), (13, 5989040), (16, 4866095), (20, 3892876), (26, 2994520), (40, 1946438), (43, 1810640), (52, 1497260), (65, 1197808), (80, 973219), (86, 905320), (104, 748630), (130, 598904), (172, 452660), (208, 374315), (215, 362128), (260, 299452), (344, 226330), (430, 181064), (520, 149726), (559, 139280), (688, 113165), (860, 90532), (1040, 74863), (1118, 69640), (1720, 45266), (1741, 44720), (2236, 34820), (2795, 27856), (3440, 22633), (3482, 22360), (4472, 17410), (5590, 13928), (6964, 11180), (8705, 8944)]