1555668884

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{20123}}^1$

素因数の和:20396

約数の個数: 48

約数和(自身を含む): 3407878656

約数和(自身を除く): 1852209772

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 251, 308, 502, 1004, 1757, 2761, 3514, 5522, 7028, 11044, 19327, 20123, 38654, 40246, 77308, 80492, 140861, 221353, 281722, 442706, 563444, 885412, 1549471, 3098942, 5050873, 6197884, 10101746, 20203492, 35356111, 55559603, 70712222, 111119206, 141424444, 222238412, 388917221, 777834442, 1555668884]

約数ペア:

[(1, 1555668884), (2, 777834442), (4, 388917221), (7, 222238412), (11, 141424444), (14, 111119206), (22, 70712222), (28, 55559603), (44, 35356111), (77, 20203492), (154, 10101746), (251, 6197884), (308, 5050873), (502, 3098942), (1004, 1549471), (1757, 885412), (2761, 563444), (3514, 442706), (5522, 281722), (7028, 221353), (11044, 140861), (19327, 80492), (20123, 77308), (38654, 40246)]