638528055

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{2551}}^1$

素因数の和:2648

約数の個数: 64

約数和(自身を含む): 1173021696

約数和(自身を除く): 534493641

約数列:

[1, 3, 5, 11, 15, 33, 37, 41, 55, 111, 123, 165, 185, 205, 407, 451, 555, 615, 1221, 1353, 1517, 2035, 2255, 2551, 4551, 6105, 6765, 7585, 7653, 12755, 16687, 22755, 28061, 38265, 50061, 83435, 84183, 94387, 104591, 140305, 250305, 283161, 313773, 420915, 471935, 522955, 1038257, 1150501, 1415805, 1568865, 3114771, 3451503, 3869867, 5191285, 5752505, 11609601, 15573855, 17257515, 19349335, 42568537, 58048005, 127705611, 212842685, 638528055]

約数ペア:

[(1, 638528055), (3, 212842685), (5, 127705611), (11, 58048005), (15, 42568537), (33, 19349335), (37, 17257515), (41, 15573855), (55, 11609601), (111, 5752505), (123, 5191285), (165, 3869867), (185, 3451503), (205, 3114771), (407, 1568865), (451, 1415805), (555, 1150501), (615, 1038257), (1221, 522955), (1353, 471935), (1517, 420915), (2035, 313773), (2255, 283161), (2551, 250305), (4551, 140305), (6105, 104591), (6765, 94387), (7585, 84183), (7653, 83435), (12755, 50061), (16687, 38265), (22755, 28061)]