257079460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{641}}^1\times {\mathrm{1823}}^1$

素因数の和:2484

約数の個数: 48

約数和(自身を含む): 590188032

約数和(自身を除く): 333108572

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 641, 1282, 1823, 2564, 3205, 3646, 6410, 7051, 7292, 9115, 12820, 14102, 18230, 20053, 28204, 35255, 36460, 40106, 70510, 80212, 100265, 141020, 200530, 401060, 1168543, 2337086, 4674172, 5842715, 11685430, 12853973, 23370860, 25707946, 51415892, 64269865, 128539730, 257079460]

約数ペア:

[(1, 257079460), (2, 128539730), (4, 64269865), (5, 51415892), (10, 25707946), (11, 23370860), (20, 12853973), (22, 11685430), (44, 5842715), (55, 4674172), (110, 2337086), (220, 1168543), (641, 401060), (1282, 200530), (1823, 141020), (2564, 100265), (3205, 80212), (3646, 70510), (6410, 40106), (7051, 36460), (7292, 35255), (9115, 28204), (12820, 20053), (14102, 18230)]