19635520

素因数分解:

$2^6\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1427}}^1$

素因数の和:1487

約数の個数: 56

約数和(自身を含む): 47877984

約数和(自身を除く): 28242464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 160, 172, 215, 320, 344, 430, 688, 860, 1376, 1427, 1720, 2752, 2854, 3440, 5708, 6880, 7135, 11416, 13760, 14270, 22832, 28540, 45664, 57080, 61361, 91328, 114160, 122722, 228320, 245444, 306805, 456640, 490888, 613610, 981776, 1227220, 1963552, 2454440, 3927104, 4908880, 9817760, 19635520]

約数ペア:

[(1, 19635520), (2, 9817760), (4, 4908880), (5, 3927104), (8, 2454440), (10, 1963552), (16, 1227220), (20, 981776), (32, 613610), (40, 490888), (43, 456640), (64, 306805), (80, 245444), (86, 228320), (160, 122722), (172, 114160), (215, 91328), (320, 61361), (344, 57080), (430, 45664), (688, 28540), (860, 22832), (1376, 14270), (1427, 13760), (1720, 11416), (2752, 7135), (2854, 6880), (3440, 5708)]