261659260

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{349}}^1\times {\mathrm{1973}}^1$

素因数の和:2350

約数の個数: 48

約数和(自身を含む): 580356000

約数和(自身を除く): 318696740

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 349, 380, 698, 1396, 1745, 1973, 3490, 3946, 6631, 6980, 7892, 9865, 13262, 19730, 26524, 33155, 37487, 39460, 66310, 74974, 132620, 149948, 187435, 374870, 688577, 749740, 1377154, 2754308, 3442885, 6885770, 13082963, 13771540, 26165926, 52331852, 65414815, 130829630, 261659260]

約数ペア:

[(1, 261659260), (2, 130829630), (4, 65414815), (5, 52331852), (10, 26165926), (19, 13771540), (20, 13082963), (38, 6885770), (76, 3442885), (95, 2754308), (190, 1377154), (349, 749740), (380, 688577), (698, 374870), (1396, 187435), (1745, 149948), (1973, 132620), (3490, 74974), (3946, 66310), (6631, 39460), (6980, 37487), (7892, 33155), (9865, 26524), (13262, 19730)]