19315980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{449}}^1$

素因数の和:703

約数の個数: 72

約数和(自身を含む): 58968000

約数和(自身を除く): 39652020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 239, 449, 478, 717, 898, 956, 1195, 1347, 1434, 1796, 2151, 2245, 2390, 2694, 2868, 3585, 4041, 4302, 4490, 4780, 5388, 6735, 7170, 8082, 8604, 8980, 10755, 13470, 14340, 16164, 20205, 21510, 26940, 40410, 43020, 80820, 107311, 214622, 321933, 429244, 536555, 643866, 965799, 1073110, 1287732, 1609665, 1931598, 2146220, 3219330, 3863196, 4828995, 6438660, 9657990, 19315980]

約数ペア:

[(1, 19315980), (2, 9657990), (3, 6438660), (4, 4828995), (5, 3863196), (6, 3219330), (9, 2146220), (10, 1931598), (12, 1609665), (15, 1287732), (18, 1073110), (20, 965799), (30, 643866), (36, 536555), (45, 429244), (60, 321933), (90, 214622), (180, 107311), (239, 80820), (449, 43020), (478, 40410), (717, 26940), (898, 21510), (956, 20205), (1195, 16164), (1347, 14340), (1434, 13470), (1796, 10755), (2151, 8980), (2245, 8604), (2390, 8082), (2694, 7170), (2868, 6735), (3585, 5388), (4041, 4780), (4302, 4490)]