219905816

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{68209}}^1$

素因数の和:68259

約数の個数: 32

約数和(自身を含む): 458371200

約数和(自身を除く): 238465384

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 248, 403, 806, 1612, 3224, 68209, 136418, 272836, 545672, 886717, 1773434, 2114479, 3546868, 4228958, 7093736, 8457916, 16915832, 27488227, 54976454, 109952908, 219905816]

約数ペア:

[(1, 219905816), (2, 109952908), (4, 54976454), (8, 27488227), (13, 16915832), (26, 8457916), (31, 7093736), (52, 4228958), (62, 3546868), (104, 2114479), (124, 1773434), (248, 886717), (403, 545672), (806, 272836), (1612, 136418), (3224, 68209)]