1971908820

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{521669}}^1$

素因数の和:521694

約数の個数: 96

約数和(自身を含む): 7011244800

約数和(自身を除く): 5039335980

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 90, 105, 108, 126, 135, 140, 180, 189, 210, 252, 270, 315, 378, 420, 540, 630, 756, 945, 1260, 1890, 3780, 521669, 1043338, 1565007, 2086676, 2608345, 3130014, 3651683, 4695021, 5216690, 6260028, 7303366, 7825035, 9390042, 10433380, 10955049, 14085063, 14606732, 15650070, 18258415, 18780084, 21910098, 23475105, 28170126, 31300140, 32865147, 36516830, 43820196, 46950210, 54775245, 56340252, 65730294, 70425315, 73033660, 93900420, 98595441, 109550490, 131460588, 140850630, 164325735, 197190882, 219100980, 281701260, 328651470, 394381764, 492977205, 657302940, 985954410, 1971908820]

約数ペア:

[(1, 1971908820), (2, 985954410), (3, 657302940), (4, 492977205), (5, 394381764), (6, 328651470), (7, 281701260), (9, 219100980), (10, 197190882), (12, 164325735), (14, 140850630), (15, 131460588), (18, 109550490), (20, 98595441), (21, 93900420), (27, 73033660), (28, 70425315), (30, 65730294), (35, 56340252), (36, 54775245), (42, 46950210), (45, 43820196), (54, 36516830), (60, 32865147), (63, 31300140), (70, 28170126), (84, 23475105), (90, 21910098), (105, 18780084), (108, 18258415), (126, 15650070), (135, 14606732), (140, 14085063), (180, 10955049), (189, 10433380), (210, 9390042), (252, 7825035), (270, 7303366), (315, 6260028), (378, 5216690), (420, 4695021), (540, 3651683), (630, 3130014), (756, 2608345), (945, 2086676), (1260, 1565007), (1890, 1043338), (3780, 521669)]