2016406520

素因数分解:

$2^3\times 5^1\times {\mathrm{641}}^1\times {\mathrm{78643}}^1$

素因数の和:79295

約数の個数: 32

約数和(自身を含む): 4544050320

約数和(自身を除く): 2527643800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 641, 1282, 2564, 3205, 5128, 6410, 12820, 25640, 78643, 157286, 314572, 393215, 629144, 786430, 1572860, 3145720, 50410163, 100820326, 201640652, 252050815, 403281304, 504101630, 1008203260, 2016406520]

約数ペア:

[(1, 2016406520), (2, 1008203260), (4, 504101630), (5, 403281304), (8, 252050815), (10, 201640652), (20, 100820326), (40, 50410163), (641, 3145720), (1282, 1572860), (2564, 786430), (3205, 629144), (5128, 393215), (6410, 314572), (12820, 157286), (25640, 78643)]