128004656

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{47339}}^1$

素因数の和:47373

約数の個数: 30

約数和(自身を含む): 268559820

約数和(自身を除く): 140555164

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 169, 208, 338, 676, 1352, 2704, 47339, 94678, 189356, 378712, 615407, 757424, 1230814, 2461628, 4923256, 8000291, 9846512, 16000582, 32001164, 64002328, 128004656]

約数ペア:

[(1, 128004656), (2, 64002328), (4, 32001164), (8, 16000582), (13, 9846512), (16, 8000291), (26, 4923256), (52, 2461628), (104, 1230814), (169, 757424), (208, 615407), (338, 378712), (676, 189356), (1352, 94678), (2704, 47339)]