78409520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{859}}^1$

素因数の和:1042

約数の個数: 80

約数和(自身を含む): 209867520

約数和(自身を除く): 131458000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 163, 280, 326, 560, 652, 815, 859, 1141, 1304, 1630, 1718, 2282, 2608, 3260, 3436, 4295, 4564, 5705, 6013, 6520, 6872, 8590, 9128, 11410, 12026, 13040, 13744, 17180, 18256, 22820, 24052, 30065, 34360, 45640, 48104, 60130, 68720, 91280, 96208, 120260, 140017, 240520, 280034, 481040, 560068, 700085, 980119, 1120136, 1400170, 1960238, 2240272, 2800340, 3920476, 4900595, 5600680, 7840952, 9801190, 11201360, 15681904, 19602380, 39204760, 78409520]

約数ペア:

[(1, 78409520), (2, 39204760), (4, 19602380), (5, 15681904), (7, 11201360), (8, 9801190), (10, 7840952), (14, 5600680), (16, 4900595), (20, 3920476), (28, 2800340), (35, 2240272), (40, 1960238), (56, 1400170), (70, 1120136), (80, 980119), (112, 700085), (140, 560068), (163, 481040), (280, 280034), (326, 240520), (560, 140017), (652, 120260), (815, 96208), (859, 91280), (1141, 68720), (1304, 60130), (1630, 48104), (1718, 45640), (2282, 34360), (2608, 30065), (3260, 24052), (3436, 22820), (4295, 18256), (4564, 17180), (5705, 13744), (6013, 13040), (6520, 12026), (6872, 11410), (8590, 9128)]