28261730

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{137}}^1\times {\mathrm{421}}^1$

素因数の和:579

約数の個数: 48

約数和(自身を含む): 59750136

約数和(自身を除く): 31488406

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 137, 245, 274, 421, 490, 685, 842, 959, 1370, 1918, 2105, 2947, 4210, 4795, 5894, 6713, 9590, 13426, 14735, 20629, 29470, 33565, 41258, 57677, 67130, 103145, 115354, 206290, 288385, 403739, 576770, 807478, 2018695, 2826173, 4037390, 5652346, 14130865, 28261730]

約数ペア:

[(1, 28261730), (2, 14130865), (5, 5652346), (7, 4037390), (10, 2826173), (14, 2018695), (35, 807478), (49, 576770), (70, 403739), (98, 288385), (137, 206290), (245, 115354), (274, 103145), (421, 67130), (490, 57677), (685, 41258), (842, 33565), (959, 29470), (1370, 20629), (1918, 14735), (2105, 13426), (2947, 9590), (4210, 6713), (4795, 5894)]