340281640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{389}}^1\times {\mathrm{1151}}^1$

素因数の和:1570

約数の個数: 64

約数和(自身を含む): 808704000

約数和(自身を除く): 468422360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 389, 760, 778, 1151, 1556, 1945, 2302, 3112, 3890, 4604, 5755, 7391, 7780, 9208, 11510, 14782, 15560, 21869, 23020, 29564, 36955, 43738, 46040, 59128, 73910, 87476, 109345, 147820, 174952, 218690, 295640, 437380, 447739, 874760, 895478, 1790956, 2238695, 3581912, 4477390, 8507041, 8954780, 17014082, 17909560, 34028164, 42535205, 68056328, 85070410, 170140820, 340281640]

約数ペア:

[(1, 340281640), (2, 170140820), (4, 85070410), (5, 68056328), (8, 42535205), (10, 34028164), (19, 17909560), (20, 17014082), (38, 8954780), (40, 8507041), (76, 4477390), (95, 3581912), (152, 2238695), (190, 1790956), (380, 895478), (389, 874760), (760, 447739), (778, 437380), (1151, 295640), (1556, 218690), (1945, 174952), (2302, 147820), (3112, 109345), (3890, 87476), (4604, 73910), (5755, 59128), (7391, 46040), (7780, 43738), (9208, 36955), (11510, 29564), (14782, 23020), (15560, 21869)]