1640556

素因数分解:

$2^2\times 3^2\times {\mathrm{199}}^1\times {\mathrm{229}}^1$

素因数の和:438

約数の個数: 36

約数和(自身を含む): 4186000

約数和(自身を除く): 2545444

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 199, 229, 398, 458, 597, 687, 796, 916, 1194, 1374, 1791, 2061, 2388, 2748, 3582, 4122, 7164, 8244, 45571, 91142, 136713, 182284, 273426, 410139, 546852, 820278, 1640556]

約数ペア:

[(1, 1640556), (2, 820278), (3, 546852), (4, 410139), (6, 273426), (9, 182284), (12, 136713), (18, 91142), (36, 45571), (199, 8244), (229, 7164), (398, 4122), (458, 3582), (597, 2748), (687, 2388), (796, 2061), (916, 1791), (1194, 1374)]