208388620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{86111}}^1$

素因数の和:86142

約数の個数: 36

約数和(自身を含む): 481021632

約数和(自身を除く): 272633012

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 86111, 172222, 344444, 430555, 861110, 947221, 1722220, 1894442, 3788884, 4736105, 9472210, 10419431, 18944420, 20838862, 41677724, 52097155, 104194310, 208388620]

約数ペア:

[(1, 208388620), (2, 104194310), (4, 52097155), (5, 41677724), (10, 20838862), (11, 18944420), (20, 10419431), (22, 9472210), (44, 4736105), (55, 3788884), (110, 1894442), (121, 1722220), (220, 947221), (242, 861110), (484, 430555), (605, 344444), (1210, 172222), (2420, 86111)]