28778156

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{1607}}^1$

素因数の和:1670

約数の個数: 36

約数和(自身を含む): 56887824

約数和(自身を除く): 28109668

約数列:

[1, 2, 4, 11, 22, 37, 44, 74, 121, 148, 242, 407, 484, 814, 1607, 1628, 3214, 4477, 6428, 8954, 17677, 17908, 35354, 59459, 70708, 118918, 194447, 237836, 388894, 654049, 777788, 1308098, 2616196, 7194539, 14389078, 28778156]

約数ペア:

[(1, 28778156), (2, 14389078), (4, 7194539), (11, 2616196), (22, 1308098), (37, 777788), (44, 654049), (74, 388894), (121, 237836), (148, 194447), (242, 118918), (407, 70708), (484, 59459), (814, 35354), (1607, 17908), (1628, 17677), (3214, 8954), (4477, 6428)]