66782440

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{947}}^1$

素因数の和:1042

約数の個数: 64

約数和(自身を含む): 157671360

約数和(自身を除く): 90888920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 43, 82, 86, 164, 172, 205, 215, 328, 344, 410, 430, 820, 860, 947, 1640, 1720, 1763, 1894, 3526, 3788, 4735, 7052, 7576, 8815, 9470, 14104, 17630, 18940, 35260, 37880, 38827, 40721, 70520, 77654, 81442, 155308, 162884, 194135, 203605, 310616, 325768, 388270, 407210, 776540, 814420, 1553080, 1628840, 1669561, 3339122, 6678244, 8347805, 13356488, 16695610, 33391220, 66782440]

約数ペア:

[(1, 66782440), (2, 33391220), (4, 16695610), (5, 13356488), (8, 8347805), (10, 6678244), (20, 3339122), (40, 1669561), (41, 1628840), (43, 1553080), (82, 814420), (86, 776540), (164, 407210), (172, 388270), (205, 325768), (215, 310616), (328, 203605), (344, 194135), (410, 162884), (430, 155308), (820, 81442), (860, 77654), (947, 70520), (1640, 40721), (1720, 38827), (1763, 37880), (1894, 35260), (3526, 18940), (3788, 17630), (4735, 14104), (7052, 9470), (7576, 8815)]