647888978

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{647}}^1\times {\mathrm{1979}}^1$

素因数の和:2662

約数の個数: 32

約数和(自身を含む): 1108546560

約数和(自身を除く): 460657582

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 647, 1294, 1979, 3958, 7117, 14234, 14881, 21769, 29762, 43538, 45517, 91034, 163691, 327382, 500687, 1001374, 1280413, 2560826, 14084543, 28169086, 29449499, 58898998, 323944489, 647888978]

約数ペア:

[(1, 647888978), (2, 323944489), (11, 58898998), (22, 29449499), (23, 28169086), (46, 14084543), (253, 2560826), (506, 1280413), (647, 1001374), (1294, 500687), (1979, 327382), (3958, 163691), (7117, 91034), (14234, 45517), (14881, 43538), (21769, 29762)]